HELP RN PLSPLS!!!! I CANT FIGURE THIS OUTT!!

HELP RN PLSPLS!!!! I CANT FIGURE THIS OUTT!!

Answers

Answer 1

Answer:m=2/5

Step-by-step explanation:

m[tex]\neq[/tex]0

5/6=1/3m

15m=6

m=2/5, m[tex]\neq[/tex]0


Related Questions

For the following sample of n=10 scores: 2, 3, 4 , 4, 5, 5, 5, 6, 6, 7
a. Assume that the scores are measurements of a discrete variable and fine the median.
b. Assume that the scores are measurements of a continuous variable and find the median by locating the precise midpoint of the distribution.

Answers

The scores are measurements of a discrete variable is 10 and the median is 5.  The scores are measurements of a continuous variable is 10 and the median by locating the precise midpoint of the distribution is 5.

To find the median of a set of data, we first need to put the data in order.

2, 3, 4, 4, 5, 5, 5, 6, 6, 7

The median is the middle value when the data is in order. Since there are 10 scores, the middle two scores are the 5th and 6th scores, which are both 5. Therefore, the median is 5.

To find the median of a continuous variable, we also need to put the data in order, but this time we treat the scores as if they are measurements on a continuous scale.

2, 3, 4, 4, 5, 5, 5, 6, 6, 7

Next, we locate the precise midpoint of the distribution. Since there are 10 scores, the midpoint falls between the 5th and 6th scores. The 5th score is 5 and the 6th score is also 5. Therefore, the midpoint is (5+5)/2 = 5.

So, the median is 5 when we treat the scores as measurements on a continuous scale.

To know more about Median:

https://brainly.com/question/21969448

#SPJ4

This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Show that if n is an integer and n^3 + 5 is odd, then n is even usinga proof by contradiction. Rank the options below. Suppose that n^3 + 5 is odd and that n is odd. We know that the sum of two odd numbers is even. As n is odd. n^3 is odd. Therefore, our supposition was wrong; hence n is even. As n^3 and 5 are odd, their sum n^3 + 5 should be even, but it is given to be odd. This is a contradiction.

Answers

Assume n is odd. Since n^3 is odd, n^3 + 5 should be even, but it's odd. Therefore, n is even.

The correct ranking of the options is:

As n^3 and 5 are odd, their sum n^3 + 5 should be even, but it is given to be odd. This is a contradiction.

Suppose that n^3 + 5 is odd and that n is odd. We know that the sum of two odd numbers is even. As n is odd, n^3 is odd. Therefore, our supposition was wrong; hence n is even.

The proof by contradiction shows that the assumption that n is odd leads to a contradiction with the given fact that n^3 + 5 is odd. Therefore, the assumption that n is odd must be false, and hence n is even.

The proof begins by assuming that n is odd and showing that this leads to a contradiction with the given fact that n^3 + 5 is odd. Specifically, since the sum of two odd numbers is even, n^3 + 5 should be even if n is odd. However, we know that n^3 + 5 is odd, so our assumption that n is odd must be false, meaning that n is even.

To learn more about odd and even integer, refer:

https://brainly.com/question/13399637

#SPJ4

Expand and simplify
1) (x+3)(x+ 5) =
2) (x+3)(x - 5) =
3) (x-3)(x - 5) =
4) (2x + 4)(x-7)=
Please help me

Answers

Answer:

x^2+8x+15

x^2-2x+15

x^2-8x+15

2x^2&10x-28

The population change for the ten most populous counties in the US from 2000 to 2010 are given in the following table:County & Percent Change: Los Angeles CA 3.1, Cook IL -3.4, Harris TX 20.3, Maricopa AZ 24.2, San Diego CA 10.0, Orange CA 5.8, Kings NY 1.6, Miami-Dade FL 10.8 Dallas TX 6.7, Queens NY 0.1a. What is the mean of the data? b. What is the median of the data? c. Which is the better description of the center of this data and why?

Answers

The mean and median of given data of population change for the ten most populous counties in the US from 2000 to 2010 is 7.2% and 6.25%.

To find the mean of the data, we need to add up all the percent changes and divide by the total number of counties:

Mean = (3.1 - 3.4 + 20.3 + 24.2 + 10.0 + 5.8 + 1.6 + 10.8 + 6.7 + 0.1) / 10 = 7.2%

Therefore, the mean percent change for the ten most populous counties in the US from 2000 to 2010 is 7.2%.

To find the median of the data, we first need to order the percent changes from smallest to largest:

-3.4, 0.1, 1.6, 3.1, 5.8, 6.7, 10.0, 10.8, 20.3, 24.2

Since there are an even number of values, the median is the average of the two middle values, which in this case are 5.8 and 6.7. Therefore, the median percent change for the ten most populous counties in the US from 2000 to 2010 is (5.8 + 6.7) / 2 = 6.25%.

The better description of the center of this data is the median, because it is less affected by outliers than the mean. In this case, the percent change for Maricopa County, AZ (24.2%) is much larger than the other values, and it pulls the mean upward. The median, on the other hand, is not affected by outliers, and it gives a better representation of the typical percent change for these counties.

To know more about mean:

https://brainly.com/question/30298007

#SPJ4

Write a function that models the data.
j k
0 3
5 28
10 53
15 78
20 103
k=[

Answers

The equation of line is y = 5x + 3 , where the slope is m = 5

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

Let the first point be P ( 0 , 3 )

Let the second point be Q ( 5 , 28 )

Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Substituting the values in the equation , we get

Slope m = ( 28 - 3 ) / ( 5 - 0 )

Slope m = 25 / 5 = 5

Now , the equation of line is y - y₁ = m ( x - x₁ )

Substituting the values in the equation , we get

y - 3 = 5 ( x - 0 )

On simplifying the equation , we get

y - 3 = 5x

Adding 3 on both sides of the equation ,  we get

y = 5x + 3

Hence , the equation of line is y = 5x + 3

To learn more about equation of line click :

https://brainly.com/question/14200719

#SPJ1

Discuss the costs and benefits of all the nontraditional banking options covered during this unit, including money transfer and payment apps, digital wallets, and e-money management apps. Why would individuals prefer these options over traditional banking?

Answers

Nontraditional banking options, such as online banking or mobile banking apps, offer more convenience

Why does individuals prefer these nontraditional banking options  options over traditional banking?

Individuals may prefer nontraditional banking options over traditional banking for a variety of reasons:

Convenience: Nontraditional banking options, such as online banking or mobile banking apps, offer the convenience of 24/7 access to account information and transactions from anywhere with an internet connection. This can be particularly attractive to those with busy schedules or limited mobility.

Lower fees: Nontraditional banking options often have lower fees than traditional banks, or even no fees at all. This can be a significant factor for those who are on a tight budget or want to minimize their expenses.

Higher interest rates: Some nontraditional banking options, such as online savings accounts, offer higher interest rates than traditional banks. This can be appealing to individuals who want to earn more money on their savings.

Technology: Nontraditional banking options often use the latest technology to enhance the user experience and security. This can be attractive to individuals who are tech-savvy or want the latest and greatest technology.

Learn more about banking:https://brainly.com/question/14042269

#SPJ1

Help me with this worksheet please

Answers

Answer:

its so tiny

Step-by-step explanation:

show a closer picture

What is the solution of the system of equations?
4x - 3y = 15
x+y = 2
Enter your answer in the boxes.

Answers

Answer:

x = 3, y = -1

Step-by-step explanation:

4x - 3y = 15

x + y = 2 -> y = 2 - x

4x - 3(2 - x) = 15

4x - 6 + 3x = 15

7x = 21

x = 3

y = 2 - x

y = 2 -3

y = -1

Answer: x =3, y = -1

Step-by-step explanation:

[tex]\bf{\underline{We\:solve\:by\:applying\:the\:reduction\:method.}}[/tex]

          [tex]\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{The\:exercise\:is \ ---\to \ \left \{ {{4x-3y=15} \atop {x+y=2 \ \ \ \ \ }} \right. } \end{gathered}$}}[/tex]

Multiply the second equation by -4, then add both equations.

  4x - 3y = 15

  -4(x + y = 2)

We add these equations to eliminate x.

    -7y = 7

Then we solve -7y = 7 for y. (We divide by 7)

        [tex]\bf{\dfrac{-7y}{ -7}=\dfrac{7}{-7} } \\ \\ \bf{y=-1}[/tex]

We place the found value of y , in one of the original equations y in order to solve for x:

        4x - 3y = 15

        4x - 3(-1) = 15

        3x + 4 = 15

We add (-3) to both sides.

     4x + 3 + (-3) = 15 + (-3)

      4x = 12

We divide both sides by 4.

         [tex]\bf{\dfrac{4x}{4}=\dfrac{12}{4} } \\ \\ \bf{x=3}[/tex]

Solution: x=3,y=-1

To further complement your learning about systems of equations, look more at https://brainly.com/question/20333461

negative distances and velocities could mean in this situation.

Answers

The negative is a direction going -5 on the x axis we still went five in distance.

What is the velocity?

The direction of a body or object's movement is defined by its velocity. In its basic form, speed is a scalar quantity. In essence, velocity is a vector quantity. It is the speed at which distance changes. It is the displacement change rate.

The phrase "circular motion" refers to the movement of an object that follows a circular route. We all understand that an item moving in a circle has a constant velocity since it does not fluctuate.

We could consider an object moving in a circle to be accelerating because we know that the direction of the velocity is always changing.

A tugboat reportedly travelled 1.5 miles in 0.3 hours. Hence, its speed is -5 miles per hour.

Thus, the velocity is negative as can be seen here. it displays the direction.

Learn more about velocity here:

brainly.com/question/2562955

#SPJ9

For the following situation, find the mean and standard deviation of the population. List all samples (with replacement) of the given size from that population. Find the mean and
standard deviation of the sampling distribution and compare them with the mean and standard deviation of the population.
The number of DVDs rented by each of three families in the past month is 2, 11, and 5. Use a sample size of 2

Answers

The correct comparison of the population and sampling distribution is A. Means are the same but the standard deviation of sampling distribution is smaller

How to find the mean and standard deviation

X X^2

95 9025

96 9216

98 9604

Sum = 289 27845

n 3

The sample mean 96.33333333 SUM/n

Population mean 96.33333333 SUM/n

Sample standard dev [tex]1.527525232 \sqrt{((1/(n-1))(SUM(X^2)-(1/n)SUM(X)^2)}[/tex]

Population standard dev [tex]1.247219129 \sqrt{((1/n)(SUM(X^2)-(1/n)SUM(X)^2)}[/tex]

Population Mean(μ) = 96.33

Population standard deviation (σ) = 1.25

Option A) 95,96,98 and X bar = 96.33

Sampling distribution :

mean (μx = μ) = 96.33

standard deviation(σx = σ/SQRT(n)) = 1.25/SQRT(3) = 0.72

Option A) Means are the same but the standard deviation of the sampling distribution is smaller

Read more about standard deviation here:

https://brainly.com/question/24298037

#SPJ1

Which statement is true
about the function f(x)= V-=x?
The domain of the
graph is all real numbers.
The range of the graph IS all real numbers.
The domain of the graph is all real numbers less than or
equal to 0.
The range of the graph is all real numbers less than or equal to 0.

Answers

The correct statement regarding the function [tex]f(x) = \sqrt{-x}[/tex] is given as follows:

The domain of the graph is all real numbers less than or equal to zero.

How to find the domain and the range of a function?

The domain of a function is the set that contains all the values assumed by the input of the function.The range of a function is the set that contains all the values assumed by the output of the function.

For the square root function, the inside term cannot be negative, hence -x >= 0 -> x <= 0, meaning that the domain of the graph is all real numbers less than or equal to zero.

The square root assumes values of zero or greater, hence the range is of y >= 0.

More can be learned about domain and range of functions at https://brainly.com/question/30348593

#SPJ1

When the standard deviation is not known, mean control chart upper and lower control limits are computed by adding and subtracting ______ from the grand mean

Answers

Answer:

A2 x average range

Step-by-step explanation:

Find the quotient of these complex numbers (6-7i)-(4-5i)=

Answers

2 - 2i is the quotient of these complex numbers (6-7i)-(4-5i).

What is Division?

A division is a process of splitting a specific amount into equal parts.

To find the quotient of complex numbers, we need to use the formula:

(a + bi) / (c + di) = [(a + bi) x (c - di)] / (c^2 + d^2)

where a, b, c, and d are real numbers and i is the imaginary unit.

In this case, we are subtracting two complex numbers:

(6-7i) - (4-5i)

= 6 - 7i - 4 + 5i (distribute the negative sign)

= 2 - 2i

Hence,  2 - 2i is the quotient of these complex numbers (6-7i)-(4-5i).

To learn more on Division click:

https://brainly.com/question/21416852

#SPJ1

Half of a number is seven less than the number. What is the number?

Answers

Answer: [tex]x=3.5[/tex]

Step-by-step explanation:

Let [tex]x[/tex] be the number, then

[tex]\frac{1}{2}x=x-7\\\frac{1}{2}x-x=-7\\-\frac{1}{2}x=-7\\x=3.5[/tex]

Consider the following equation.

6y=48
Step 1 of 2 : Find the x- and y-intercepts, if possible.

Answers

Answer:

X= NONE

Y=8

Step-by-step explanation:

Divide both sides by the same factor to get y alone

6y=48

So you divide 6y divided by 6 equals 48 divided by 6

Then you cancel the terms that are in both the numerator and denominator.

So 6 divided by 6 cancels out because 6 divided by 6 is 1, leaving you with the 1y or just Y they are the same thing so now you have the Y you are trying to find.

So now Y=48 divided by 6 and if you punch that into your calculator it should give you 8 so Y=8

Point A and B lie on a circle with a radius of 1, and arc AB has a length pi/3. What fraction of the circumference of the circle is the length of arc AB?
a. 1/6
b. 1/8
c. 1/12

Answers

The length of arc AB is 1/6

First, we need to find the circumference using the formula C=2*r*π. where r is the radius and r=1. Therefore, C=2*1*π=2π. Arc AB has length π/3. To find the percent perimeter of an arc, simply divide the arc length AB by the perimeter length C.

AB/C=(π/3)/(2π)=π/(6π)=1/6. Therefore, the length of arc AB is 1/6 of the circumference C.

A circle is simply a round shape that has no corners or line segments. It is a closed curve shape in geometry. The points of circle are at a fixed distance from the center.

The Circle Formulas are expressed as, Diameter of a Circle. D = 2 × r. Circumference of a Circle. C = 2 × π × r.

know more about circle click here;

https://brainly.com/question/3922729

#SPJ4

If a 0.5 liter solution of bichloride contains 1 gram of bichloride, then 250 mL will contain how many grams of bichloride?

Answers

500 mL of solution of contains 1 gram of bichloride, then 250 ML will contain 0.5 gram of bichloride.

what's the formula to find the area of a pentagon

Answers

Answer:

The formula to find the area of a regular pentagon (a polygon with five sides of equal length and equal interior angles) is:

Area = (1/4) * sqrt(5(5+2sqrt(5))) * s^2

Where s is the length of one side of the pentagon.

Step-by-step explanation:


La edad del padre de Dylan es actualmente el cuadrado de la edad de Dylan. Si Dylan tiene 6 años, ¿cuántos años tiene su papá?

Answers

Dylan's father's age would be 36 years old at the time when Dylan is 6 years old.

What are algebraic expressions?

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is that Dylan's father's age is currently the square of Dylan's age. Dylan is 6 years old.

We can write Dylan's father's age as -

A{father} = A{Dylan} x A{Dylan}

A{father} = 6 x 6

A{father} = 36

Therefore, Dylan's father's age would be 36 years old at the time when Dylan is 6 years old.

To solve more questions on functions & expressions, visit the link below

brainly.com/question/17613163

#SPJ1

{Question in english -
Dylan's father's age is currently the square of Dylan's age. If Dylan is 6 years old, how old is his dad?}

Question
Which statement is true about the relationship between the amount of plant food remaining and the number of days?
O This relationship is not a function because more than one amount of plant food remains each day.
• This relationship iS function because more than one amount of plant food remains each day.
This relationship is not a function because only one amount of plant food remains each day.
This relationship
is a function because only one amount of plant food remains each day.

Answers

Answer:

This is a function because only one amount of plant food remain each day.

Step-by-step explanation:

A function is a relation where every input has only one output.

A relations is a set of ordered pairs like:

(1,5) (2,4) (3,3) (4,2)

Your input is the days and your output is the amount of food.  Each day the food is going down.  Each day would have a unique amount of food.

Suppose that in a certain metropolitan area, 90% of all households have cable TV. Let x denote the number among four randomly selected households
that have cable TV. Then x is a binomial random variable with n = 4 and p = 0.90. (Round your answers to four decimal places.)

(a) Calculate p(3)=P(x = 3).

Interpret this probability.
a) the probability that more than three of the four randomly selected households have cable TV
b) the probability that at most three of the four randomly selected households have cable TV
c) the probability that at least three of the four randomly selected households have cable TV
d) the probability that less than three of the foor randomly selected households have cable TV
e) the probability that exactly three of the four randomly selected households have cable TV


(b) Calculate p(4), the probability that all four selected households have cable TV.

(c) Calculate P(x ≤ 3).

Answers

a) The probability P(X = 3) = 0.2916 represents the probability that exactly three of the four randomly selected households have cable TV.

b) The probability that all four selected households have cable TV is: 0.6561

c) P(x ≤ 3) = 0.9477

How to solve binomial probability distribution problems?

The binomial probability is the probability of exactly x successes on n repeated trials, with p probability. The formula is:

P(X = x) = ⁿCₓ * pˣ * (1 - p)^(n - x)

where:

n = the number of trials.

x = number of times a particular outcome is attained.

p = probability of success.

a) We are given to calculate p(X = 3).

p = 0.90

n = 4

Thus:

P(X = 3) = ⁴C₃ * 0.9³ * (1 - 0.9)⁴⁻³

= 0.2916

This represents the probability that exactly three of the four randomly selected households have cable TV.

b) The probability p(4) is:

P(X = 4) = ⁴C₄ * 0.9⁴ * (1 - 0.9)⁴⁻⁴

= 0.6561

c) P(x ≤ 3)= P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

= 0.9477

Read more about Binomial Probability Distribution Problems at: https://brainly.com/question/15246027

#SPJ1

PLEASE HELPPPPPPPPPP

Answers

46+67=113
180-113
x=67

2. The total rainfall in Los Angeles was 18.82" for winter 2018 and 14.86" for winter 2019. What was the percent decrease from 2018 to 2019?​

Answers

Answer:

decrease by 21.04%

Step-by-step explanation:

18.82" - 14.86" = 3.96

percentage = 3.96/18.82

= 0.21041445271(100)

=21.04%

The linear functions f(x) and g(x) are represented on the graph, where g(x) is a
transformation of f(x):


Part A: Describe two types of transformations that can be used to transform f(x) to g(x).
Part B: Solve fork in each type of transformation.
Part C: Write an equation for each type of transformation that can be used to
transform f(x) to g(x).

Answers

The two transformations that can be applied are a horizontal translation of 2 units to the left or a vertical translation of 10 units up.

Which two types of transformations can be used?

A general linear equation is written as:

f(x) = a*x + b

Here we can see that the two lines are parallel, so the transformations that can be applied are a vertical or an horizontal translation of N units.

The vertical translation is written as:

g(x) = f(x) + N

The horizontal one is:

g(x) = f(x + N).

B) now we need to solve this for both both of the transformations.

i) We can see that f(0) = -2 and g(0) = 8

For the first transformation we have:

g(0) =f(0) + N = 8

       = -2 + N = 8

                  N = 8 +2 = 10

For the second transformation:

g(0) = f(0 + N) = 8

We can see that f(x) = 8 for x = 2, then in this case N = 2.

Then we can have a translation of 2 units to the left or 10 units up.

Learn more about translations at

https://brainly.com/question/24850937

#SPJ1

14 tires is% of 250 tires.
(Type a whole number or decimal rounded to the nearest tenth

Answers

The complete statement is 14 tires is 5.6% of 250 tires.

How to complete the blanks

From the question, we have the following parameters that can be used in our computation:

14 tires is% of 250 tires.

As an equation, we have

14 = x% * 250

Divide both sides of the equation by 250

So, we have the following representation

x% = 14/250

Evaluate

x% = 0.056

Multiply by 100

x = 5.6

Hence, the expression in the blank is 5.6

Read mroe about percentage at

https://brainly.com/question/28398580

#SPJ1

The strength of magnetic force varies inversely with the square of the distance between the magnets.
Suppose that when two magnets are 0.06 meters apart, there is a force of 4 newtons. Find the work, in joules, that is required to move the magnets from a distance of 0.03 meters apart to a distance of 0.1 meters apart. (1 Joule = 1 Newton * 1 meter). Round your answer to three (or more) decimal places.

Answers

We can start by using the formula for inverse square law: F = k/d^2. where F is the force, d is the distance between the magnets, and k is a constant.

We can use the given information to solve for k: 4 = k/0.06^2, k = 4 * 0.06^2, k = 0.0144

Now we can use the value of k to find the force when the magnets are 0.03 meters and 0.1 meters apart: F1 = 0.0144/0.03^2 = 16, F2 = 0.0144/0.1^2 = 0.144

The work required to move the magnets is equal to the change in potential energy between the initial and final positions.

We can use the work-energy principle, which states that the work done on an object is equal to its change in kinetic energy plus its change in potential energy. Since the magnets are not moving, their kinetic energy is constant, so the work done on them is equal to their change in potential energy: W = Uf - Ui

where W is the work, Uf is the final potential energy, and Ui is the initial potential energy. The potential energy of the magnets is given by: U = -k/d

where k is the constant we found earlier and d is the distance between the magnets.

Therefore, the initial potential energy is: Ui = -0.0144/0.03 = -0.48

And the final potential energy is: Uf = -0.0144/0.1 = -0.144

So the work required to move the magnets is: W = -0.144 - (-0.48) = 0.336 Joules

Therefore, the work required to move the magnets from 0.03 meters apart to 0.1 meters apart is 0.336 Joules (rounded to three decimal places).

You can read more about the magnetic force at https://brainly.com/question/2279150

#SPJ4

Find the midpoint (M) between points A and B if A = (4, 0, 2) and B = (-3, 0, 9)

Answers

Answer:

Step-by-step explanation:

Midpoint of A(x1,y1,z1) and B(x2,y2,z2) is

(x1+x2/2,y1+y2/2,z1+z2/3)

(x1,y1,z1) = (4, 0, 2)

(x2,y2,z2)=(-3, 0, 9)

Midpoint = (4+(-3)/2,0+0/2,9+2/2)=(1/2,0,11/2)

Find the volume of a pyramid whose height is 15.7 inches and whose base is a rectangle with
dimensions of 7.6 inches and 12.4 inches.

Answers

Answer: V = 493.19

Step-by-step explanation:

V=1/3bh

7.6*12.4=94

94*15.7=1479.568

1479.568*1/3=493.19

The U.S. Department of Transportation maintains statistics for mishandled bags per 1,000 airline passengers. In September 2016, Delta mishandled 1.35 bags per 1,000 passengers. What is the probability that in the next 1,000 passengers, Delta will have no mishandled bags? at least one mishandled bag? at least two mishandled bags?

Answers

Answer:

The given probability of Delta mishandling a bag is 1.35 per 1,000 passengers. This means the probability of not mishandling a bag is 1 - 1.35/1000 = 0.99865.

The probability of no mishandled bags in the next 1,000 passengers is:

P(no mishandled bags) = (0.99865)^1000 ≈ 0.716

The probability of at least one mishandled bag in the next 1,000 passengers is the complement of no mishandled bags:

P(at least one mishandled bag) = 1 - P(no mishandled bags) ≈ 0.284

To find the probability of at least two mishandled bags, we can use the binomial distribution formula:

P(at least two mishandled bags) = 1 - P(0 mishandled bags) - P(1 mishandled bag)

where P(0 mishandled bags) and P(1 mishandled bag) can be calculated using the binomial probability formula:

P(k successes in n trials) = (n choose k) * p^k * (1-p)^(n-k)

where n is the number of trials, k is the number of successes, p is the probability of success, and (n choose k) is the binomial coefficient.

For P(0 mishandled bags), we have n = 1000, k = 0, and p = 0.00135:

P(0 mishandled bags) = (1000 choose 0) * 0.00135^0 * 0.99865^1000 ≈ 0.716

For P(1 mishandled bag), we have n = 1000, k = 1, and p = 0.00135:

P(1 mishandled bag) = (1000 choose 1) * 0.00135^1 * 0.99865^999 ≈ 0.242

Therefore,

P(at least two mishandled bags) = 1 - 0.716 - 0.242 ≈ 0.042

We will now perform cross-validation on a simulated data set. (a) Generate a simulated data set as follows: > set.seed (1) > x-rnorm (100) y-x-2x-2+rnorm (100) In this data set, what is n and what is p? Write out the model used to generate the data in equation form. (b) Create a scatterplot of X against Y. Comment on what you find. (c) Set a random seed, and then compute the LOOCV errors that result from fitting the following four models using least squares: Note you may find it helpful to use the data.frameO function to create a single data set containing both X and Y Are your results the same as what you got in (c)? Why? this whuat you expected? Explain your aniswer. (d) Repeat (c) using another random seed, and report your results. (e) Which of the models in (c) had the smallest LOOCV error? Is

Answers

a. n is 100 and p = 2 when we generate the simulated data set.

b. By generating a scatterplot we found a quadratic function. Y from -9 to 3 and x from -2 to 2.

c. Yes the result is the same as we got in question c.

d. Report of d is exactly the same because LOOCV will be the same since it evaluates n folds of a single observation.

e. The quadratic model and yes I expected that because the true data is of a quadratic form.

a. Generate a simulated data set.

set.seed(1)

Y <- rnorm(100)

X <- rnorm(100)

Y <- X - 2 × X² + rnorm(100)

n=100, p=2.

y=x−2x2+ϵ,ϵ∼N(0,1)

b. Create a scatterplot of X against Y . Comment on what you find.

ggplot(data.table(X=X, Y=Y), aes(x=X,y=Y)) + geom_point()

We can see a clear quadratic function. Y from -9 to 3 and x from -2 to 2.

c. Set a random seed, and then compute the LOOCV errors that result from fitting the following four models using least squares:

dt = data.table(X, Y)

# i

glm.fit1 <- glm(Y ~ X)

cv.glm(dt, glm.fit1)$delta

## [1] 5.890979 5.888812

# ii

glm.fit2 <- glm(Y ~ poly(X,2))

cv.glm(dt, glm.fit2)$delta

## [1] 1.086596 1.086326

# iii

glm.fit3 <- glm(Y ~ poly(X,3))

cv.glm(dt, glm.fit3)$delta

## [1] 1.102585 1.102227

# iv

glm.fit4 <- glm(Y ~ poly(X,4))

cv.glm(dt, glm.fit4)$delta

## [1] 1.114772 1.114334

d. Repeat (c) using another random seed, and report your results. Are your results the same as what you got in (c)? Why?

dt = data.table(X, Y)

set.seed(2)

# i

glm.fit1 <- glm(Y ~ X)

cv.glm(dt, glm.fit1)$delta

## [1] 5.890979 5.888812

# ii

glm.fit2 <- glm(Y ~ poly(X,2))

cv.glm(dt, glm.fit2)$delta

## [1] 1.086596 1.086326

# iii

glm.fit3 <- glm(Y ~ poly(X,3))

cv.glm(dt, glm.fit3)$delta

## [1] 1.102585 1.102227

# iv

glm.fit4 <- glm(Y ~ poly(X,4))

cv.glm(dt, glm.fit4)$delta

## [1] 1.114772 1.114334

Exact the same, because LOOCV will be the same since it evaluates n folds of a single observation.

e. The quadratic model and yes I expected that because the true data is of a quadratic form.

Learn more about cross-validation at

https://brainly.com/question/30508081

#SPJ4

Other Questions
Answer and explanation to the attached picture please! Thank you. What is the connection string for SQL Server using Windows Authentication? If f is differentiable at a, must f be continuous at a? A. No, if f is differentiable at a and does not have a corner at a, then f is continuous at a B. No, if f is differentiable at a and does not have a vertical tangent at a, then f is continuous at . C. No, if f is differentiable at a and positive at a, then f is continuous at a. D. Yes, iff is differentiable at a, then fis continuous at a. Please Help Me...Use the ordinary annuity formula shown to the right to determine the accumulated amount in the annuity.$300 invested quarterly for 15 years at a 4.5% interest rate compounded quarterly.The accumulated amount will be $_________?(Round to the nearest cent as needed.) Rewrite 92 and 146 as product of their prime factor What's a gravel road? In the process of producing engine valves, the valves are subjected to a first grind. Valves whose thicknesses are within the specification are ready for installation. Those valves whose thicknesses are above the specification are reground, while those whose thicknesses are below the specification are scrapped. Assume that after the first grind, 75% of the valves meet the specification, 20% are reground, and 5% are scrapped. Furthermore, assume that of those valves that are reground, 90% meet the specification, and 10% are scrapped.a)Find the probability that a valve is ground only once. Round the answer to two decimal places.b)Given that a valve is not reground, what is the probability that it is scrapped?c)Find the probability that a valve is scrapped. Round the answer to three decimal places.d)Given that a valve is scrapped, what is the probability that it was ground twice?e)Find the probability that the valve meets the specification (after either the first or second grind).f)Given that a valve meets the specification (after either the first or second grind), what is the probability that it was ground twice?g)Given that a valve meets the specification, what is the probability that it was ground only once? fill in the blank. sarah's father just died. one thing she has been doing is talking a lot about the time her father won a big golf tournament. muller and thompson (2003) would say that this reflects the___theme of the experience of grief. The purpose of the preamble of the Constitution is toestablish and maintain the sovereignty of individual states.describe and enforce the powers of the confederation government.introduce and explain the core ideas of the governments important principles.define and distinguish the roles of domestic and foreign policies. Question 1/1 ptsMia bought $10,000 of stock in company XYZ at $50 per share. After some years, Mia sells all her stockat $70 per share. How much total does Mia receive from selling all her stock? Is this sentence written correctly?"Anything on these tables cost only a dollar," Hayley said to the customersat her yard sale. auctionDIRECTIONS: Answer the following questions.1. What culture flourished on the Greek mainland in the Late Bronze Age, and what was this period viewedas by the Greeks? (Answer must be at least 2-3 complete sentences.) The outer layer of tissue in a blastocyst, called the endoderm, eventually develops into the digestive system organs, including the liver and intestines. What is this an example of?A: Cell differentiationB: Cell divisionC: This process would use neither cell division nor cell differentiation.D: This process would use both cell division and differentiation. Adding and Subtracting PolynomialsFeb 09, 10:57:07 AMFind the sum of 9x + 5x + 8 and 9x 7.- assume all integers are in hexadecimal and two's complement notation. remember to indicate overflow if necessary.(2AF6)+(7017)=?16 16 Mateo currently has $100 in his bank account and plans on saving $20 per week in order to save for soccer camp over the summer. Write an equation to represent the amount of money saved, S, with respect to the number of weeks that have passed, w.S = _ w + _ Explain how the events from this day affect Ying-ying using thepsychological lens. Choose the best answer.A statement in which a conclusion is true if the conditions of a particular hypothesis are true is called a A food item is considered high in a nutrient if it provides at least ______ % of the Daily Value for that nutrient.a.) 20b.) 10c.) 5d.) 15 Paul, Maria, Stephanie, and Andy have a total of $56 to spend at the amusement park. Admission will cost them $5 each for a total of $20. They can spend the rest on food and rides. They plan to spend twice as much on rides as on food. How much do they plan to spend on rides?