TRUE OR FALSE to calculate the average of the numeric values in a list, the first step is to get the total of values in the list.

Answers

Answer 1

The given statement 'to calculate the average of the numeric values in a list  the first step is to get the sum of all the given values ' is a true.

Average of the numeric values in a list,

First step is to get the sum of values in the list.

It is not the total number of values.

Once we have the sum, we can divide it by the number of values to get the average.

Here is an example,

Suppose we have a list of numeric values are as follow,

[2, 4, 6, 8, 10].

To calculate the average of these values, we first find their sum,

2 + 4 + 6 + 8 + 10 = 30

Next,

divide the sum by the number of values in the list

Number of values = 5

30 / 5 = 6

This implies,

The average of the values in the list is 6.

Therefore, to get the average first step is to get the total of all values is true statement.

Learn more about average here

brainly.com/question/29635181

#SPJ4


Related Questions

A cultural researcher tests whether individuals from different cultures share or differ in the belief that dreams have meaning.
Independent Variable: ________
Quasi-Independent Variable: ________
Dependent Variable: ________

Answers

IV individuals from different cultures

DV the belief that dreams have meaning.

Independent Variable: Culture

Belief in the meaning of dreams is a quasi-independent variable (since it cannot be manipulated or assigned randomly)

The response to whether or not dreams have meaning is the dependent variable.

What are the three kinds of variables?

An experimental investigation typically contains three types of variables: independent variables, dependent variables, and controlled variables.

What is the independent or quasi-independent variable?

A compared to the rest of the country. Because the variable levels are pre-existing, it is not possible to assign participants to groups at random.

To know more about Variable visit:

brainly.com/question/1511425

#SPJ1

1 On a map of scale 1:100 000, the distance between Tower Bridge
and Hammersmith Bridge is 12.3 cm.
What is the actual distance in km?

Answers

To calculate the actual distance in km, we need to use the scale factor of 1:100 000. This means that 1 cm on the map is equivalent to 100 000 cm in real life.

Therefore, 12.3 cm on the map is equivalent to 12.3 x 100 000 cm in real life.

Now, 1 km is equivalent to 100 000 cm.

Therefore, 12.3 x 100 000 cm is equivalent to 1.23 km.

Hence, the actual distance in km is 1.23 km.

Let V and W be vector spaces and T: v → w be linear. (a) Prove that T is one-to-one if and only if T carries linearly inde- pendent subsets of V onto linearly independent subsets of W. (b) Suppose that T is one-to-one and that S is a subset of V. Prove that S is linearly independent if and only if T(S) is linearly inde- pendent. Suppose β and onto. Prove that T(3) = {T(m), T(v2), for W (c) (vi, v2 , . . . , Un} is a basis for V and T is one-to-one ,T(vn)} is a basis

Answers

(a) T is one-to-one if and only if T carries linearly independent subsets of V onto linearly independent subsets of W.

(b) If T is one-to-one, then S is linearly independent if and only if T(S) is linearly independent.

(c) If β is a basis for V and T is one-to-one and onto, then T(β) is a basis for W.

(a) Assume T is one-to-one. Let S be a linearly independent subset of V, and suppose T(S) is linearly dependent. Then there exist distinct vectors s1, s2, ..., sn in S such that T(s1), T(s2), ..., T(sn) are linearly dependent. This means that there exist scalars c1, c2, ..., cn, not all zero, such that c1T(s1) + c2T(s2) + ... + cnT(sn) = 0. Since T is linear, we have T(c1s1 + c2s2 + ... + cnsn) = 0. But since T is one-to-one, this implies that c1s1 + c2s2 + ... + cnsn = 0, contradicting the assumption that S is linearly independent. Hence, T(S) must be linearly independent.

Conversely, assume that T carries linearly independent subsets of V onto linearly independent subsets of W. Let v1 and v2 be distinct vectors in V, and suppose T(v1) = T(v2). Then {v1, v2} is linearly dependent, which implies that there exist scalars c1 and c2, not both zero, such that c1v1 + c2v2 = 0. Applying T to both sides yields c1T(v1) + c2T(v2) = 0, which implies that T(v1) and T(v2) are linearly dependent. This contradicts the assumption that T carries linearly independent subsets of V onto linearly independent subsets of W. Hence, T must be one-to-one.

(b) Assume T is one-to-one and let S be a subset of V. Suppose S is linearly independent and that T(S) is linearly dependent. Then there exist distinct vectors s1, s2, ..., sn in S such that T(s1), T(s2), ..., T(sn) are linearly dependent. This means that there exist scalars c1, c2, ..., cn, not all zero, such that c1T(s1) + c2T(s2) + ... + cnT(sn) = 0. Since T is linear, we have T(c1s1 + c2s2 + ... + cnsn) = 0. But since T is one-to-one, this implies that c1s1 + c2s2 + ... + cnsn = 0, contradicting the assumption that S is linearly independent. Hence, T(S) must be linearly independent.

Conversely, assume that T(S) is linearly independent whenever S is a linearly independent subset of V. Let v1 and v2 be distinct vectors in V, and suppose T(v1) = T(v2). Then {v1, v2} is linearly dependent, which implies that there exist scalars c1 and c2, not both zero, such that c1v1 + c2v2 = 0. Since {v1, v2} is linearly dependent, we have either v1 = 0 or v2 = 0. Without loss of generality, assume v1 = 0. Then T(v1) = 0 = T(v2), and hence T({v1, v2}) = {0} is linearly dependent. This contradicts the assumption that T carries linearly independent subsets of V onto linearly independent subsets of W. Hence, S must be linearly independent.

(c) First, we will show that T(β) spans W. Let w be an arbitrary vector in W. Since T is onto, there exists some vector v in V such that T(v) = w. Since β is a basis for V, there exist scalars c1, c2, ..., cn such that v = c1v1 + c2v2 + ... + cnvn. Applying T to both sides, we have w = T(v) = T(c1v1 + c2v2 + ... + cnvn) = c1T(v1) + c2T(v2) + ... + cnT(vn), which implies that T(β) spans W.

Next, we will show that T(β) is linearly independent. Suppose there exist scalars c1, c2, ..., cn such that c1T(v1) + c2T(v2) + ... + cnT(vn) = 0. Applying T to both sides, we have T(c1v1 + c2v2 + ... + cnvn) = 0. But since T is one-to-one, this implies that c1v1 + c2v2 + ... + cnvn = 0, which implies that c1 = c2 = ... = cn = 0, since β is a basis for V. Hence, T(β) is linearly independent.

Since T(β) spans W and is linearly independent, it is a basis for W. Therefore, if β is a basis for V and T is one-to-one and onto, then T(β) is a basis for W.

Learn more about linearly independent subsets here

brainly.com/question/14292641

#SPJ4

The temperature in Australia one morning was -5°c at 08:00 and increased by 2°c every hour until 12:00 what temperature will it be at 11:30

Answers

the temperature in Australia at 11:30 would be 2°C.

How to  find?

We can use a simple formula to calculate the temperature at 11:30 based on the initial temperature and the rate of increase.

Between 8:00 and 12:00, the temperature increases by 2°C every hour, for a total of 4 hours. So the temperature at 12:00 will be:

-5°C + (4 hours x 2°C/hour) = -5°C + 8°C = 3°C

To find the temperature at 11:30, we need to calculate how many hours have passed since 8:00. From 8:00 to 11:00, it has been 3 hours. And from 11:00 to 11:30, it has been an additional 0.5 hours. So, the total time since 8:00 is 3.5 hours.

To find the temperature at 11:30, we can use the same formula as before, but substitute 3.5 for the number of hours:

-5°C + (3.5 hours x 2°C/hour) = -5°C + 7°C = 2°C

Therefore, the temperature in Australia at 11:30 would be 2°C.

To know more about Calculation related questions visit:

https://brainly.com/question/30151794

#SPJ1

Solve please geometry, solve for x

Answers

Answer: The answer is D

Step-by-step explanation:

Pythagorean theorem: a²+b²=c²

x²+x²=14²

2x²=196

Evaluate...

x=7√2

- The relative frequency table shows the percentage of each type of art (painting or
sculpture) in a museum that would classify in the different styles (modern or
classical). Based on these percentages, is there evidence to suggest an association
between the variables? Explain your reasoning.
modern classical
paintings
sculptures 38%
41%
59%
62%

Answers

The chi-squared value [tex](0.032)[/tex] is smaller than for the crucial value [tex](3.84)[/tex], thus do not reject the null hypotheses that there is no connection between the kind of art and the style.

Is the value 0.05 an important one?

The significance level, alpha, which establishes the test's sensitivity, and the test statistic, which really is unique to each type of test, both influence the significance level for a hypothesis test.

What drives the crucial value calculation?

Critical values in hypothesis testing indicate whether the outcomes are statistically significant. They aid in determining the confidence intervals' upper and lower bounds. In both circumstances, crucial values accommodate for ambiguity in sample you're using it to make conclusions about a population.

                       modern    classical    total

paintings            0.38         0.62             1

sculptures          0.41          0.59             1

total                    0.79          1.21              2

The degrees of freedom for the test is [tex](r - 1) *(c - 1)[/tex]

[tex](2 - 1) * (2 - 1) = 1[/tex]

The chi-squared statistic [tex]0.032[/tex]

To know more about critical value visit:

https://brainly.com/question/30168469

#SPJ1

please help to find the area of this figure

Answers

Answer:

42 units^2

Step-by-step explanation:

central rectangle area

(A=LxW)

7x4=28 units^2,

congruent triangle area

(1/2bxh)

1/2( 7x2)= 7 units^2. (one triangle)

let's add the 3 areas 28 + 7 + 7 = 42 units^2 (your answer)

Corresponding sides of similar triangles are proportional. Use this fact to find the length of side PR of the following pair of similar triangles. Remember that the length cannot be​ negative, and there may be more than one solution.

Answers

The length of side PR can be either 14 or 5.

Describe corresponding sides ?

In geometry, corresponding sides are the sides of two or more geometric figures that are in the same relative position to each other. When two or more figures are similar, their corresponding sides are in the same ratio or proportion, meaning that the ratio of the length of one side in the first figure to the length of the corresponding side in the second figure is constant. For example, if two triangles are similar, then their corresponding sides are proportional to each other. The side that corresponds to another side is typically identified using the same letter with a prime symbol (') added to it.

Since the triangles PQR and STV are similar, their corresponding sides are proportional. That is,

PR / SV = QR / TV

Substituting the given lengths, we get:

(3x-19) / (3x-9) = (x-4) / 12

Cross-multiplying and simplifying, we get:

36x - 228 = (3x-9)(x-4)

36x - 228 = 3x^2 - 21x + 36

3x^2 - 57x + 264 = 0

Dividing both sides by 3, we get:

x^2 - 19x + 88 = 0

Factoring the quadratic equation, we get:

(x-11)(x-8) = 0

Therefore, x = 11 or x = 8.

If x = 11, then PR = 3x-19 = 3(11) - 19 = 14.

If x = 8, then PR = 3x-19 = 3(8) - 19 = 5.

Therefore, the length of side PR can be either 14 or 5.

To know more about equation visit:

https://brainly.com/question/29090112

#SPJ1

Class Members read the following number of pages over the weekend 9,11,7,10,9,8,7,13,2,12,10,9,8,10,11,12 which number is an outlier? Explain your reason

Answers

Answer: 2

Step-by-step explanation:

because the common range here is 7-13.

2 isnot in this common range so it could be identified as an outlier

If the average aggregate inventory value is $1,200,000 and the cost of goods sold is $600,000, which of the following is weeks of supply?

Answers

The inventory turnover ratio can be calculated by dividing the cost of goods sold by the average inventory value. In this case, the inventory turnover ratio is 0.5, and the correct answer is (D) 0.5.

The inventory turnover ratio measures the number of times a company sells and replaces its inventory during a period. It can be calculated by dividing the cost of goods sold by the average inventory value.

The inventory turnover ratio = Cost of goods sold / Average inventory value

In this case, the cost of goods sold is $600,000 and the average inventory value is $1,200,000.

Inventory turnover ratio = $600,000 / $1,200,000 = 0.5

Therefore, the inventory turnover ratio is 0.5, and the correct answer is (D) 0.5.

Learn more about division here: brainly.com/question/21416852

#SPJ4

Complete question:

If the average aggregate inventory value is $1,200,000 and the cost of goods sold is $600,000, which of the following is inventory turnover?

A)60

B)10.4

C)2

D)0.5

E)None of these

PLEASEE HELP ITS DUE TONIGHT!!
Given the two rectangles below. Find the area of the shaded region.

Answers

Answer=51 unit square

I’m having a hard time understanding how to get the Domain and Range. If you help please

Answers

Answer:

[-1,inf) and [-2,inf)

Step-by-step explanation:

Domain is all the X coordinates that the function will pass through. it starts at -1 and goes to inf so [-1,inf) is the domain. The range is all the Y coordinates the function will pass through. It starts at -2 and goes up to inf so [-2,inf) and that is your answer

The area of a sector of a circle with a central angle of 5 radians is 15cm². Find the radius of the circle.
Do not round any intermediate computations. Round your answer to the nearest tenth.

Answers

The area of a sector of a circle is equal to the central angle in radians multiplied by the square of the radius.

Therefore, we can use this formula to solve for the radius:

Area = (Central Angle) × (Radius)²

Therefore, we can rearrange this formula to solve for the radius:

Radius = √(Area / Central Angle)

Plugging in the values given, we get:

Radius = √(15 cm² / 5 rad)

Simplifying, we get:

Radius = 3 cm

Therefore, the radius of the circle is 3 cm, rounded to the nearest tenth.

the zeros of f(x)=20x^2 - 19x + 3

Answers

The quadratic function's zeros are therefore  [tex]x = 1[/tex] and [tex]x = 0.2[/tex] . A degree two polynomial in one or so more variables that is a quadratic function.

What ways in which quadratic function be recognized?

Three points are used to determine a quadratic function, which has the form [tex]f(x) = ax2 Plus bx + c.[/tex]

[tex]Sqrt(b2 - 4ac) = [-b sqrt(b)][/tex] Where the quadratic function's coefficients are a, b, and c.

Here,  [tex]a = 20[/tex] , [tex]b = -19[/tex] , & [tex]c = 3[/tex]  . We obtain the quadratic formula by substituting these values: [tex]x = [-(-19) sqrt((-19)2 - 4(20)(3)] / 2(20) (20)[/tex]

When we condense this phrase, we get:

[tex]x = [19 +/- sqrt(361 - 240)] / 40 x = [19 +/- sqrt(121)] / 40\sx = [19 ± 11] / 40[/tex]

Therefore, The zeros of a quadratic equation   [tex]f(x) = 20x2 - 19x + 3[/tex] are as follows: [tex]x = (19 Plus 11) / 40 = 1 and x = (19 − 11) / 40 = 0.2.[/tex]

Learn more about quadratic function here:

brainly.com/question/18958913

#SPJ1

You are given the following information about a termite colony population….

Answers

The population of the termite colony will be approximately 593 in 4 years.

Since the population of the termite colony will double in 6 years, we can use the formula:

P = P0 * 2^(t/k)

where P0 is the initial population, P is the population after time t, and k is the time it takes for the population to double (in this case, 6 years).

We know that the current population is 16000, so P0 = 16000. We also know that the population consists only of females, so we can assume that the population grows linearly.

To find the population of the termite colony in 4 years, we need to determine how much the population grows in that time. Since the population doubles in 6 years, we can assume that it grows by a factor of 2/6 per year. Therefore, the population after 4 years can be calculated as:

P = P0 * (2/6)^4

= 16000 * (1/27)

= 592.59 (rounded to the nearest whole number)

Therefore, the population of the termite colony will be approximately 593 in 4 years.

To know more about problems related to population, click here:

https://brainly.com/question/25630111

#SPJ1

Find an equation of a line in a point-slope form passing through (2,4) and parallel to the line 6x+3y=3 . Then write the answer in a slope-intercept form. Then write the answer in standard form. Graph the line on cartesian plane. Show your work (the steps)!

Answers

The equation of the line in slope-intercept form is y = -2x + 8 and the equation of the line in standard form is 2x + y = 8.

What is slope-intercept form and standard form of a straight line ?

Slope-intercept form and standard form are two common ways to represent the equation of a straight line in two dimensions.

Slope-intercept form of a line is y = mx + b, where m is the slope of the line, and b is the y-intercept (where the line intersects the y-axis). This form makes it easy to determine the slope and y-intercept of the line from the equation, and to graph the line using those values.

Standard form of a line is Ax + By = C, where A, B, and C are constants, and A and B are not both zero. This form makes it easy to compare the coefficients of x and y, and to determine the x-intercept and y-intercept of the line.

Find the equation of a line passing through a given point and parallel to the given line in slope intercept and standard form :

Given point is (2,4) and line is  6x+3y=3, we first need to determine the slope of the given line. To do this, we can rearrange the equation into slope-intercept form (y = mx + b), where m is the slope:

3y = -6x + 3

y = -2x + 1

The slope of this line is -2.

Since the line we want to find is parallel to this line, it will also have a slope of -2.

We can use the point-slope form of the equation of a line to find the equation of the line passing through (2,4) with slope -2:

y - 4 = -2(x - 2)

Expanding and simplifying, we get:

y - 4 = -2x + 4

y = -2x + 8

This is the equation of the line in slope-intercept form.

To write it in standard form, we can rearrange the equation into the form Ax + By = C:

2x + y = 8

This is the equation of the line in standard form.

Graph of the line -

To know more about slope visit :

brainly.com/question/3605446

#SPJ1

If you know that a < b, and both a and b are positive numbers, then what must be true about the relationship between the opposites of these numbers? Explain.

Answers

Answer:

a+b>0, a>0, b>0, a-b<0

Step-by-step explanation:

well, a>0 and b>0 since they're both positive

Answer:

sample answer

Step-by-step explanation:

The number further left on a number line is the smaller number. For positive numbers, the number closest to zero is smaller. For negative numbers, the number closest to zero is larger. If a is less than b, and they are both positive, then a is closer to 0 than b. The opposite of a is also closer to zero than the opposite of b, so the opposite of a must be larger than the opposite of b.

he triangles below are similar. Triangle X Y Z. Side X Z has a length of 12, Z Y is 16, Y X is 14. Triangle R Q S. Side R Q is 3.5, Q S is 4, S R is 3. Which similarity statement expresses the relationship between the two triangles? Triangle X Y Z is similar to Triangle Q R S Triangle X Y Z is similar to Triangle R Q S Triangle Z X Y is similar to triangle Q S R Triangle Z X Y is similar to triangle Q R S

Answers

Answer:

Triangle XYZ is similar to Triangle RQS

Step-by-step explanation:

Triangle XYZ is similar to Triangle RQS

XZ/SR = 12/3 = 4

ZY/QS = 16/4 = 4

YX/RQ = 14/3.5 = 4

similar figures have all corresponding sides in the same ratio

Answer the question below: *
Tasha is planning an expansion of a square flower garden in a city park. If each side of the original garden is
increased by 5 m, the new total area of the garden will be 121 m². Find the length of each side of the original garden.
O 6 meters
O 6.6 meters
O 11 meters
O 16 meters

Answers

Sea "x" la longitud de cada lado del jardín original en metros.

La superficie del jardín original es x^2 m².

Si cada lado del jardín original se aumenta en 5 m, el nuevo lado del jardín será de (x+5) metros, y la nueva superficie será (x+5)^2 m².

Según el problema, la nueva superficie total es de 121 m²:

(x+5)^2 = 121

Tomando la raíz cuadrada en ambos lados:

x+5 = 11

Restando 5 en ambos lados:

x = 6

Por lo tanto, la longitud de cada lado del jardín original es de 6 metros.

Por lo tanto, la respuesta correcta es O 6 metros.

x - the length of each side of the original garden

A = x²

( x + 5 )² = 121  /√

x + 5 = 11,  or  x + 5 = - 11;

x = 11 - 5

x = 6  ( another solution in negative )

Answer:

A ) 6 m

Which statement about equations with an infinite number of solutions is TRUE? No matter what number you choose to substitute for the variable, the result will be a true statement. No matter what number you choose to substitute for the variable, the result will always be 0=1 . No matter what number you choose to substitute for the variable, the result will always be u=0 . No matter what number you choose to substitute for the variable, the result will be a false statement.

Answers

Correct Option is No matter what number you choose to substitute for the variable, the result will be a true statement.

What are Infinite Solutions?

The number of solutions of an equation based on the total number of variables contained in it. As a result, the equation system consists of two or more equations with two or more variables.

It can be any combination such as

2 equations in 3 variables5 equations in 3 variables, etc

There are three different forms of equation solutions, depending on the quantity of variables and equations. They are

Unique Solution (One solution)No solutionInfinite Solutions (Many solutions)

The term “infinite” represents limitless or unboundedness.

For the infinite number of solution of the equation No matter what number you choose to substitute for the variable, the result will be a true statement.

To know more about variable, visit:

https://brainly.com/question/15078630

#SPJ1

Marcia Gadzera wants to retire in San Diego when she is 65 years old. Marcia is now 50 and believes she will need $90,000 to retire comfortably. To date, she has set aside no retirement money. If she gets interest of 10% compounded semiannually, how much must she invest today to meet her goal of $90,000?

Answers

Answer:

Step-by-step explanation:

We can use the formula for the future value of an annuity to determine how much Marcia needs to invest today to meet her retirement goal of $90,000. The formula for the future value of an annuity is:

FV = PMT x [(1 + r/n)^(n*t) - 1] / (r/n)

where:

FV = future value of the annuity

PMT = payment (or deposit) made at the end of each compounding period

r = annual interest rate

n = number of compounding periods per year

t = number of years

In this case, we want to solve for the PMT (the amount Marcia needs to invest today). We know that:

Marcia wants to retire in 15 years (when she is 65), so t = 15

The interest rate is 10% per year, compounded semiannually, so r = 0.10/2 = 0.05 and n = 2

Marcia wants to have $90,000 in her retirement account

Substituting these values into the formula, we get:

$90,000 = PMT x [(1 + 0.05/2)^(2*15) - 1] / (0.05/2)

Simplifying the formula, we get:

PMT = $90,000 / [(1.025)^30 - 1] / 0.025

PMT = $90,000 / 19.7588

PMT = $4,553.39 (rounded to the nearest cent)

Therefore, Marcia needs to invest $4,553.39 today in order to meet her retirement goal of $90,000, assuming an interest rate of 10% per year, compounded semiannually.

solve the quadratic equation 9^2×-15×-6=0​

Answers

The solutions to the quadratic function 9x² - 15x - 6 = 0 are given as follows:

x = -1/3 and x = 2.

How to solve the quadratic equation?

The quadratic equation for this problem is defined as follows:

9x² - 15x - 6 = 0.

The coefficients of the function are given as follows:

a = 9, b = -15 and c = -6.

The discriminant of the function is obtained as follows:

D = b² - 4ac

D = (-15)² - 4 x 9 x (-6)

D = 441.

Then the solutions to the quadratic function are obtained as follows:

x = (-b - sqrt(D))/2a = (15 - sqrt(441))/18 = -1/3.x = (-b + sqrt(D))/2a = (15 + sqrt(441))/18 = 2.

More can be learned about quadratic functions at https://brainly.com/question/1214333

#SPJ1

59, 60, 61, 62, 63, 64, 65, and 66 Find the values of x for which the series converges. Find the sum of the series for those values of x. 59. § (-5)".z" n=1 Answer + 00 60. Σ(α + 2)" n=1 61. (x - 2)" 3" n=0 Answer + 62. (-4)" (x - 5) n=0 00 63. 2" ch NO Answer

Answers

The values of x for which the series converges is x ∈ (-1/5, 1/5). The sum of the series for those values of x is (-5x)/(1 + 5x).

The series is [tex]\Sigma^{\infty}_{n=1}(-5)^nx^n[/tex].

We can write this series as [tex]\Sigma^{\infty}_{n=1}(-5x)^n[/tex].

This is a infinite geometric series with first term a = -5x and common ration r = -5x.

It is convergent when

|r| < 1

|-5x| < 1

|-5| |x| < 1

5|x| < 1

Divide by 5 on both side, we get

|x| < 1/5

The series is convergent when x ∈ (-1/5, 1/5).

Sum of the series is

Sₙ = a/1 - n

Sₙ = (-5x)/{1 - (-5x)}

Sₙ = (-5x)/(1 + 5x)

To learn more about series converges link is here

brainly.com/question/15415793

#SPJ4

The complete question is:

Find the values of x for which the series converges. Find the sum of the series for those values of x.

[tex]\Sigma^{\infty}_{n=1}(-5)^nx^n[/tex]

Calculate the standard deviation of ABC stock returns given the following historical series of returns. Year Rate of Return 1 −12% 2 10% 3 5% 4 −7% 5 3%

Answers

The value of standard deviation of the stock returns is 10.246%.

What is standard deviation?

The variance or dispersion of a group of data points is measured by standard deviation. Finding the square root of the variance, which is the sum of the squared deviations between each data point and the mean, is how it is determined. In statistics, the term "standard deviation" is used to characterise the distribution of a data collection and to estimate the probability of certain outcomes or events.

The standard deviation is determined using the formula:

√(V).

The mean of the given data is:

(−12 + 10 + 5 − 7 + 3) / 5 = −0.2%

Now, the variance is:

Variance = [ (−12 − (−0.2))² + (10 − (−0.2))² + (5 − (−0.2))² + (−7 − (−0.2))² + (3 − (−0.2))² ] / 5

Variance = 104.96

Now, for standard deviation:

Standard deviation = √(104.96) = 10.246%

Hence, the value of standard deviation of the stock returns is 10.246%.

Learn more about standard deviation here:

https://brainly.com/question/29088233

#SPJ1

Let S be the universal set, where:
S={1,2,3,...,18,19,20}
Let sets A and B be subsets S, where:

Answers

The intersection of sets A and B is the set of all elements that are in both set A and set B is 5.

What is union?

In set theory, the union of two or more sets is a set that contains all the distinct elements of the sets being considered.

According to question:

Set A = {1, 2, 3, 7, 9, 11, 13, 19} has 8 elements.

Set B = {1, 2, 3, 4, 8, 11, 18, 19, 20} has 9 elements.

The union of sets A and B, denoted as A ∪ B, is the set of all elements that are in either set A or set B or in both.

n(A ∪ B) = 8 + 9 - n(A ∩ B)

Now we need to find n(A ∩ B), which is the number of elements that are common to both sets A and B.

The intersection of sets A and B, denoted as A ∩ B, is the set of all elements that are in both set A and set B. We can find n(A ∩ B) by counting the number of common elements between sets A and B, which are 1, 2, 3, 11, and 19.

Therefore, n(A ∩ B) = 5.

n(A ∪ B) = 17 + 5

n(A ∪ B) = 22

So, the number of elements in the set A ∪ B is 22.

The intersection of sets A and B is the set of all elements that are in both set A and set B. From above, we know that the common elements between sets A and B are 1, 2, 3, 11, and 19.

Therefore, n(A ∩ B) = 5.

So, the number of elements in the set A ∩ B is 5.

To know more about union visit:

https://brainly.com/question/13264255

#SPJ1

John is standing on top of a cliff 275 feet above the ocean. The measuremment of the angle of depression to a boat in the ocean is 38 degrees. How far is the boat from the base of the cliff?

Answers

Answer: The boat is approximately 357.4 feet from the base of the cliff.

Step-by-step explanation:

Let x be the horizontal distance from the base of the cliff to the boat. Using the tangent function, we can write:

tan(38) = 275 / x

Solving for x, we have:

x = 275 / tan(38)

Using a calculator, we get:

x ≈ 357.4 feet

Therefore, the boat is approximately 357.4 feet from the base of the cliff.

Answer:

352m

Step-by-step explanation:

h = 275m

a = b (alternative angles)

.: b = 38°

Let the base from the boat to the cliff be d

Using Tan

Tan 38° = opposite ÷ adjacent

Tan 38° ° = 275 ÷d

d = 275 ÷ Tan 38 °

d = 352m

.: The boat is 352m away from the foot of the cliff

One type of flower is growing in a pond. The flowers F in the pond are growing exponentially.


0 200
1 800

Answers

Answer:

The function that models the number of flowers, F(t), is given as F(t) = cd, where c and d are constants. We need to find the values of c and d in order to write the equation for the number of flowers in the pond at time, t.

From the table, we know that when t=0, F(t) = 200. This means that:

F(0) = cd = 200

Similarly, when t=1, F(t) = 800. This means that:

F(1) = cd = 800

We can solve this system of equations for c and d by dividing the second equation by the first equation:

F(1)/F(0) = 800/200

4 = d/c

Now we can substitute the value of d/c into either equation to solve for one of the constants. Let's use the first equation:

cd = 200

c(d/c) = 200

d = 200/c

Substituting this into the equation d/c = 4, we get:

4 = d/c = (200/c) / c

4c = 200

c = 50

Now we can find the value of d using d = 200/c:

d = 200/50 = 4

Therefore, the equation for the number of flowers in the pond at time, t, is:

N(t) = cd = 50(4) = 200

So, the answer is N(t) = 200(1), which means that at any time t, the number of flowers in the pond is 200.

XYZ company is situated in Ghana. They have been commissioned your organisation to design a database for them. The database is expected to keep data on employees, customers, suppliers, and products. Important records on employees such as employee's ID, date of birth, and dependants are expected to be captured in the database. Products information such as product's ID, name of product, manufacturing and expiring data, and name of supplier are expected to be captured. The company receives suppliers from different organisations, hence, it would like the database to capture relevant details of these suppliers. Each supplier supplies only one type of product for the company. Every customer is assigned one sales representative, yet sales representatives maybe assigned up to ten customers. Customers can order an unlimited number of good. Properly represent all entities, relationships, constraints, and appropriate keys in an E-R diagram that can readily be used in a database.

Answers

By answering the presented question, we may conclude that Sales Rep: expression This entity maintains information about sales reps such as SalesRepID and SalesRepName.

what is expression ?

An expression in mathematics is a collection of representations, numbers, and conglomerates that mimic a statistical correlation or regularity. A real number, a mutable, or a mix of the two can be used as an expression. Mathematical operators include addition, subtraction, fast spread, division, and exponentiation. Expressions are often used in arithmetic, mathematic, and form. They are used in the representation of mathematical formulas, the solution of equations, and the simplification of mathematical relationships.

The ER diagram above depicts the database entities and their connections. Here's a quick rundown of each entity and its characteristics:

Employee: This object contains information on employees such as EmployeeID, Name, DateOfBirth, and Dependents.

ProductID, ProductName, ManufacturingDate, ExpiryDate, and SupplierID are all stored in this object.

Supplier: This entity holds supplier-specific information such as SupplierID, SupplierName, ContactPerson, and ContactNumber.

CustomerID, CustomerName, ContactPerson, and ContactNumber are all stored in the Customer entity.

Sales Rep: This entity maintains information about sales reps such as SalesRepID and SalesRepName.

To know more about expression visit :-

https://brainly.com/question/14083225

#SPJ1

what is the formula for the z statistic? (recall that m is the same as x-bar) (and that sem is the same things as sigma with a m subscript)

Answers

The formula for the z-statistic is (x - μ) / (σm) or (x - μ) / (s/√n) depending on known or unknown population standard deviation.

The formula for the z-statistic, which is used in hypothesis testing for a sample mean when the population standard deviation is known, is:

z = (x - μ) / (σm)

where x is the sample mean, μ is the population mean, and σm is the standard error of the mean (SEM), which is the standard deviation of the sampling distribution of the mean.

Alternatively, we can use the estimated standard error of the mean (s/√n) when the population standard deviation is unknown, and the formula for the z-statistic becomes:

z = (x - μ) / (s/√n)

where s is the sample standard deviation and n is the sample size.

To know more about z- statistic:

https://brainly.com/question/22443207

#SPJ4

Work out the bearing of D from C.

Answers

The bearing of point D from C as required to be determined in the task content is; 315°.

What is the bearing of point D from C?

By definition, the bearing of a point is the number of degrees in the angle measured in a clockwise direction from the north line to the line joining the centre of the compass with the point. A bearing is characteristically used to represent the direction of one point relative to another point.

The bearing of the point D from C in this case where the angle motion is clockwise starting from the north pole by convention;

The bearing of D from C is; 360 - 45 = 315°.

Read more on bearing;

https://brainly.com/question/28782815

#SPJ1

Other Questions
Differentiate between ICT and ICTs growth models like those used in forecastx usually model situations well where a process grows multiple choice a. until reaching saturation. b. at a more or less constant rate. c. at an exponential rate. d. in a linear fashion. Use these two constants for the question that follows:e = 1.6 10^19 Ck = 8.99 10^9 N m^2/C^2A positive charge and a negative charge are 10^15 m away from each other. Using Coulomb's law, which of the following is the electrical force between these two particles? 230 N 230 N 120 N 120 N Given the following list of sorted elements, how many elements of the list will be checked to find 25 using binary search? (12, 13, 15, 20, 23, 24, 25, 36, 40) 07 02 03 08 When RNA polymerase reaches a specific sequence of nucleotides on the DNA called the transcription terminator, a hairpin loop structure forms on the DNA strand causing the RNA polymerase and mRNA to dissociate from the DNA.a)Trueb)False Write a generator function merge that takes in two infinite generators a and b thatare in increasing order without duplicates and returns a generator that has all theelements of both generators, in increasing order, without duplicatesdef merge(a, b):""">>> def sequence(start, step):... while True:... yield start... start += step>>> a = sequence(2, 3) # 2, 5, 8, 11, 14, ...>>> b = sequence(3, 2) # 3, 5, 7, 9, 11, 13, 15, ...>>> result = merge(a, b) # 2, 3, 5, 7, 8, 9, 11, 13, 14, 15>>> [next(result) for _ in range(10)][2, 3, 5, 7, 8, 9, 11, 13, 14, 15]"""first_a, first_b = next(a), next(b)while True:if first_a == first_b:yield first_afirst_a, first_b = next(a), next(b)elif first_a < first_b:yield first_afirst_a = next(a)else:yield first_bfirst_b = next(b) the complement of an intermediate hue in pigmentation question 1 options: secondary hue primary hue tertiary hue intermediate hue compute the zeros of the polynomial 4x2 - 4x - 8 Although several events in U.S. history led to bureaucratic growth, one event stands out for leading to policy changes that dramatically increased growth in both bureaucratic agencies and personnel. That event was Write a program that inputs the value 437 using each of the scanf integer conversion specifiers. Print each input value using all the integer conversion specifiers. True or False? competitive advantage results from doing things faster, better, and cheaper from everyone else, but also from doing things the same as the competition for consistency. Match the following words.1. economic system2. capitalism3. communism4. socialism5. monopolyType here to searchMENEZ34217OAtC83system of production, resourceallocation, exchange, and distribution ofgoods and servicesan economic and political system inwhich a country's trade and industry arecontrolled by private ownersan infrastructure whereby partiesengage in exchangea situation in which one companyholds exclusive possession or control ofthe supply in a commodity or servicean economic and political system inwhich a country's trade and industry arecompletely controlled by thegovernmentan economic and political system inwhich aspects of a country's trade and39F Clear^ a physical therapist assistant performs a muscle length test for the long head of the triceps. which of the following findings is the most consistent with shortening of this muscle? which statement about systematic errors is true? a.) they can occur when a selection bias is present. b.) they can be corrected by using a larger sample size. c.) they can be challenging to notice. d.) they can be eliminated if observations are repeated. Would Kentucky have been allowed to have slavery? Why or why not? In THE BRIEF WONDROUS LIFE OF OSCAR WAO What does Yuniors chapter 5 on Abelard illustrate about the nature of storytelling and the writing of history? the upper limit of the zone of proximal development represents Suppose a dog is carrying a virus returns to a isolated doggy day care of 40 dogs. Determine the differential equation for the number of dogsD(t)who have contracted the virus if the rate at which it spreads is proportional to the number of interactions between the dogs with the virus and the dogs that have not yet come in contact with the virus.A.dD/dt=kD(40D)B. dD/dt=k40D2C. dD/dt=kPD. dD/dt=k(40D)E. dD/dt=kD a sample of a gas has a volume of 1000.0 ml at -23.0oc and 570. mm pressure. what is the volume of the gas at stp? Los venecianos exportaron _______________ a los otomanos. Generalmente se tejan en otras ciudades como ___________ queEneran tan valiosos porque su color permaneca vibrante. Esto se debe a que fueron teidos con un qumico llamado alumbre, que se encontraba principalmente en Anatolia, ubicado en ___________________ ___________________. Ayuda por favor es para hoy