Answer:
Kindly check explanation
Step-by-step explanation:
Given the data : 5, 9, 10, 11, 15
s = √[(ΣX - m)² / (n - 1)]
n = number of sample = 5
m = mean
m = ΣX/n
m = (5 + 9 + 10+ 11 + 15) / 5
m = 50/5 = 10
s =√((5-10)^2 + (9-10)^2 + (10-10)^2 + (11-10)^2 + (15-10)^2) / 5-1
= 3.601
(B) Multiply each data value by 5 to obtain the new data set 25, 45, 50, 55, 75. Compute s.
m = ΣX/n
m = (25 + 45 + 50 + 55 + 75) / 5
m = 250/5 = 50
s =√((25-50)^2 + (45-50)^2 + (50-50)^2 + (55-50)^2 + (75-50)^2) / 5-1
= 18. 028
(c) Compare the results of parts (a) and (b). In general, how does the standard deviation change if each data value is multiplied by a constant c?
The standard deviation changes by almost c times multiplied by the initial value.
3.601 * 5 = 18.005 which is almost equivalent to 18.028
(d) You recorded the weekly distances you bicycled in miles and computed the standard deviation to be s 3.1 miles. Your friend wants to know the standard deviation in kilometers. Do you need to redo all the calcula- tions?
No
Given 1 mile 1.6 kilometers, what is the standard deviation in kilometers?
If 1 mile = 1.6km
s = 3.1 miles
s in kilometers = (1.6 * 3.1) = 4.96km
Help help math math ASAP
Mathematics pls help 4 questions will give brain to best answer
Answer:
There probably isn't a mode.
Step-by-step explanation:
Because the numbers in this set of data are continuous, it is impossible to have a mode, the number that occurs most frequently in a set of data.
Answer:
[1] Not enough information to draw valid conclusion
[2] The mean will be 12.
[3] 14
[4] 5 and 7
Step-by-step explanation:
[1] if the range for a set of data is 24, from 2 to 26 and the mean is 17, what can you conclude about the data
17 is the typical data value.
Not enough information to draw valid conclusion.
The median will be 17 also.
There probably isn't a mode.
Answer: Not enough information to draw valid conclusion.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[2] The extreme values in a set of data are 5 and 19. What is true about the data set?
The mean will be 12.
There is not enough data.
The range is 14.
There will be more than one mode.
Answer = The mean will be 12.
Explanation : Mean = add all values and divide by the number of values. 5+19=24, 24/2=12
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[3] What is the mean for the following set of data, to the nearest whole number?
5,9,15,18,22
Answer = 14
Explanation:
5 + 9 + 15 + 18 + 22 = 69
69 / 5 = 13.8
Round 13.8 = 14
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[4] What is the mode for the following set of data?
4,5,5,6,7,7,8,12.
Mode = Most Often Seen
Answer = 5 and 7
Explanation:
Base on given you can see that the most is two number. There is two five and there is two seven.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~Lenvy~
Evaluate the following expression:
Answer:
5.25
Step-by-step explanation:
someone pliz solved = (27) -1/3×(27) -1/3×[(27) 1/3-(27) 2/3]
sin
[tex] \sin( \binom{ - 11\pi}{3} ) \times \tan( \frac{35\pi}{6} ) \times \sec( - ) [/tex]
Answer:
solve it :)
Step-by-step explanation:
Is the point (-4, 5) a solution of the standard form equation -2x-2y=-2
Answer:
not that i know of
Step-by-step explanation:
Find the zeros of the function.
f(x) = 2x2 – 36
Answer:
3√2 and -3√2
Step-by-step explanation:
2x^2-36
2(x^2-36)
2(x+3√2)(x-3√2)
Answer:
-4.24 and 4.24
Step-by-step explanation:
5.16 Identify hypotheses, Part II: Write the null and alternative hypotheses in words and then symbols for each of the following situations. (a) Since 2008, chain restaurants in California have been required to display calorie counts of each menu item. Prior to menus displaying calorie counts, the average calorie intake of diners at a restaurant was 1100 calories. After calorie counts started to be displayed on menus, a nutritionist collected data on the number of calories consumed at this restaurant from a random sample of diners. Do these data provide convincing evidence of a difference in the average calorie intake of a diners at this restaurant?
Answer:
H₀: µ = 1100 vs. Hₐ: µ ≠ 1100.
Step-by-step explanation:
A null hypothesis is a sort of hypothesis used in statistics that intends that no statistical significance exists in a set of given observations.
It is a hypothesis of no difference.
It is typically the hypothesis a scientist or experimenter will attempt to refute or discard. It is denoted by H₀.
For instance, H₀: µ = µ₀, where µ₀ is some null value or some claimed value.
Whereas, the alternate hypothesis is the contradicting statement to the null hypothesis.
The alternate hypothesis describes direction of the hypothesis test, i.e. if the test is left tailed, right tailed or two tailed.
It is also known as the research hypothesis and is denoted by Hₐ.
In this case the hypothesis can be defined as follows:
Null hypothesis:
H₀: The average calorie intake of a diner at this restaurant is 1100, i.e. µ = 1100.
Alternate hypothesis:
Hₐ: The average calorie intake of a diner at this restaurant is different from 1100, i.e. µ ≠ 1100.
Morgan needs 3 gallons of paint to paint the walls in his bedroom.
If the paint he uses costs $24 per gallon, how much will he spend
on paint to paint his room?
A. $24
B. $ 48
C. $60
D. $72
7.RP.A.1
Answer:
72
Step-by-step explanation:
You multiply 3 by 24 to get 72
Which of the following is a correct statement about the number and the set it belongs to?
+ π is REAL and RATIONAL only.
+ None of these
+ Repeating decimals are REAL and IRRATIONAL.
+ 2515 is REAL and RATIONAL.
+ −25 is REAL, RATIONAL, INTEGER, WHOLE and NATURAL.
9514 1404 393
Answer:
2515 is REAL and RATIONAL
Step-by-step explanation:
π is irrational
Repeating decimals are rational.
-25 is neither a Whole nor Natural number. (Whole numbers are non-negative integers; Natural numbers are positive integers, sometimes including 0.)
Any integer or fraction is REAL and RATIONAL. 2515 is an integer, so it is ...
2515 is REAL and RATIONAL
Which relationships describe angles 1 and 2?
Select each correct answer.
complementary angles
adjacent angles
supplementary angles
vertical angles
Answer:
supplementary angles because they add 180 degrees
Step-by-step explanation:
hope this helped
Answer: Supplemetary Angels, Adjacent Angels
B,C
Step-by-step explanation: The other person is wrong
Robert builds a rectangular deck with a length that is four less than two times the width of the deck.
Write the equation for the area of the deck, where w is the width.
Let
Width be wLength=2w-4Now
[tex]\\ \sf\longmapsto Area=Length\times Breadth [/tex]
[tex]\\ \sf\longmapsto Area=w(2w-4)[/tex]
[tex]\\ \sf\longmapsto Area=2w^2-4w[/tex]
$140.00 for 17ft squared
Answer: what is the question tho???
How many whale sharks would a researcher need to measure so that 90% confidence level would have a margin of error of 0.25
About 1407 sharks would be needed to have a margin of error of 0.25
What is margin of error?
Margin of error is used to determine by what value there is deviation from the real value. Margin of error (E) is given by:
[tex]E=Z_\frac{\alpha}{2} *\frac{standard\ deviation}{\sqrt{sample\ size} }[/tex]
The 90% confidence level have a z score of 1.645. Hence for E = 0.25, standard deviation = 5.7 feet, hence:
[tex]0.25=1.645*\frac{5.7}{\sqrt{sample\ size}}\\ \\sample\ size=1407[/tex]
About 1407 sharks would be needed to have a margin of error of 0.25
Find out more on margin of error at: https://brainly.com/question/10218601
Using the formula below or Excel, find the correlation coefficient, r, for this set of scores. Answer choices are rounded to the nearest hundredth.
r equals fraction numerator 1 over denominator n minus 1 end fraction sum from blank to blank of open parentheses fraction numerator x minus x with bar on top over denominator s subscript x end fraction close parentheses open parentheses fraction numerator y minus y with bar on top over denominator s subscript y end fraction close parentheses
The correlation coefficient measures the relationship between the two variables
The correlation coefficient is 0.234
How to determine the correlation coefficientThe formula of correlation coefficient is:
[tex]r = \frac{1}{n - 1} * \sum{(\frac{x - \bar x}{\sigma_x})*(\frac{y - \bar y}{\sigma_y})[/tex]
Using the dataset from the complete question, we have:
[tex]r = \frac{1}{5 - 1} * 0.9375[/tex]
Evaluate the difference
[tex]r = \frac{1}{4} * 0.9375[/tex]
Evaluate the quotient
[tex]r = 0.234375[/tex]
Approximate
[tex]r = 0.234[/tex]
Hence, the correlation coefficient is 0.234
Read more about correlation coefficient at:
https://brainly.com/question/4219149
Given that a=4 and b=5. evaluate : a²+3b
Answer:
4² + 3(5)
= 4 × 4 + 15
= 16 + 15
= 31
help with all of these please ! i’m on a time limit and i don’t have much time left.
Answer:
1. 10.235
2. 213.5
3. 46
4. 225
5. 530
The same sequence may be defined in three ways: 1) f(x) = 3x + 4 for x = {1, 2, 3, ...}, 2) a1 = 4 and an + 1 = an + 3 for n = {1, 2, 3, ...} and 3) an = 4 + 3(n − 1) for n = {1, 2, 3, ...}.
They are all supposed to generate the same values, but one version may contain an error. If one version contains an error, identify the one with the error and fix it.
Answer:
its B
Step-by-step explanation:
A class has 36 students in it and 25% of the students wore hats to school.What fraction of the students wore hats?
Answer:
9/36 or 1/4
Step-by-step explanation:
Activity
Blaine is selling tickets to a rock concert. Tickets in the front section cost $60 each. Tickets in the back section cost $40
each. Blaine has 55 tickets left to sell, and to meet his sales quota he needs to sell more than $600 in tickets from the
remaining tickets.
Blaine makes a profit of $40 on every ticket for the front section. He makes a profit of $25 on every ticket for the back
section. What's the maximum profit Blaine can make from selling his remaining tickets?
You may find it helpful to review the steps of linear programming e.
Part A
Write the system of inequalities for the given situation where x represents the number of front section tickets and y
represents the number of back section tickets.
Answer:
25 tickets more
Step-by-step explanation:
I got x+y is (less than or equal to) 55 for the first inequality and 60x+40y>600 for the second one!
Step-by-step explanation:
Since Blaine can sell a maximum of 55 tickets, the first inequalitly is x+y is less than OR EQUAL TO 55. Since the tickets in the back section cost $40 each, 40y represents the money made from those tickets. Blaine needs to make 600 in sale so the inequality is 60x+40y>600.
The system has no solution.
The system has a unique solution:
System B
(x, y)= (1
x+4y=4
-x=4y-4
O The system has infinitely many solutions.
They must satisfy the following equation:
y= 0
Answer:
21
Step-by-step explanation:
Just add then multiplay the numbers.
The y-intercept of the line whose equation is 5+y=2x
Answer:
(0, -5)
Step-by-step explanation:
We need to isolate y.
5+y=2x -- Subtract 5 from 5+y
y = 2x - 5
The image connected is what the graph would look like.
Answer:
y-int = (0,-5)
Step-by-step explanation:
Substitute 0 for x and solve to find the y-intercept.
[tex]5+y=2(0)\\ 5+y=0\\y=0-5\\y=-5[/tex]
besties i need help !!
please help asap
Answer:
the answer is 623.1.
Step-by-step explanation:
The way this question should be written to be correct scientific notation is 2.3x10^5 + 3.6x10^6 which would equal 3.83x10^6
PLS HELP AGIAN if u guess just for points ill report you question in the picture
Answer:
[tex]\sf y = \dfrac{17}{2}[/tex]
explanation:
[tex]\sf 7y-4=9y+13-4y[/tex]
collect variables in one side
[tex]\sf 7y -9y +4y = 13 +4[/tex]
simplify by addition and subtraction
[tex]\sf 2y = 17[/tex]
divide both sides by 2
Hence, ,final answer:
[tex]\sf y = \dfrac{17}{2}[/tex]
Answer:
A. y = 17/2
Step-by-step explanation:
Given equation:
7y - 4 = 9y + 13 - 4y
Collect like terms:
7y - 4 = 9y - 4y + 13
Combine like terms:
7y - 4 = 5y + 13
Subtract 5y from both sides:
2y - 4 = 13
Add 4 to both sides:
2y = 17
Divide both sides by 2:
y = 17/2
6. What is the area of OW?
(А) Зл
В) бл
9л
D) 36л
Answer:
B
Step-by-step explanation:
Answer questions for points
Step-by-step explanation:
wat questions are we needed to answer
Answer:
Hello! Thank you for the points! Trying to rank up here!
Is it possible to have a triangle with the following sides give reason
3cm 4cm 5cm
4cm 5cm 6cm
Answer: Yes,
Step-by-step explanation:
Because since there are two numbers that are the same and numbers that are different, you can make a triangle out of it. Since a triangle has twi sides that have the same length and a side that has a different length.
Example: 4cm 4cm
Find the LCM of 4 and 42
Answer:
84
Step-by-step explanation:
If 2 L of water is mixed with 4.5 L of milk and filled into 650 mL cans. Then
cans will be needed to fill the mixture.
The numbers of can required to fill the mixture is 10 cans
Data;
Volume of water = 2Lvolume of milk = 4.5Lvolume of cans = 650mL = 0.65LNumber of Cans Required to fill the mixtureTo find the numbers of can required to fill the mixture, let's add the volume of the mixture.
volume of mixture = volume of water + volume of milk
volume of mixture = [tex]2 + 4.5 = 6.5L[/tex]
The entire volume of the mixture is 6.5L.
To find the numbers of cans that'll fill the mixture, let us divide 6.5 by 0.65.
Number of can required = [tex]\frac{6.5}{0.65} = 10[/tex]
From the calculation above, we would need 10 cans to fill the mixture.
Learn more on division and proportions here;
https://brainly.com/question/870035
find the value of 5 (x - 7) = 7x -5(pls answer)
Step-by-step explanation:
1,3x+9=44-2x3x+2x=44-95x=35 5=72.3x+6=x+23x-x=2-62x=-4 2x=2
BTW I'M SORRY IF THAT'S WRONG
Answer:
x = -15
Step-by-step explanation:
5 (x - 7) = 7x - 5
Remove the parentheses
5x - 35 = 7x - 5
Move the terms
5x - 7x = -5 + 35
Collect like terms Calculate
-2x = 30
Divide both sides
x = -15
PLEASE MARK ME AS BRAINLIEST AND HAVE A NICE DAY :)