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Nookie1986 [14]
3 years ago
9

Yuri computes the mean and standard deviation for the sample data set 12, 14, 9, and 21. He finds the mean is 14. His steps for

finding the standard deviation are below

Mathematics
2 answers:
IgorC [24]3 years ago
8 0
The correct question is
<span>Yuri computes the mean and standard deviation for the sample data set 12, 14, 9, and 21. he finds the mean is 14. his steps for finding the standard deviation are below. what is the first error he made in computing the standard deviation
</span>see the picture in the attached figure N 1

we know that
The formula for Sample Standard Deviation is indicated in the attached figure N2

in this problem
n=4 and Yuri had to divide in the formula by 3  

therefore
the answer is Yuri divided by n instead of n -1

anastassius [24]3 years ago
6 0

Answer:

b on edge

Step-by-step explanation:

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20. A shoe store owner had an employee record the shoe sizes purchased by customers during one hour on two different days. The
Ulleksa [173]

Answer:

The correct option is C. 9

Step-by-step explanation:

From the graphs shown in the attached file we can see that the maximum number of shoes bought were of size 9. On both days the number of size 9 shoes bought was 5 which was the highest number of shoes bought for any size shoe. Therefore since size 9 sell the most on both days the owner should stock most of size 9 shoes in the store's inventory.

3 0
3 years ago
My Space Mathematician Teacher needs this answer,
GaryK [48]

219864070186 - 277409297400 = -57545227214 x 780498 = -4.4913935e+16 - 1274806769367926946610431 = -1.2748068e+24 x 3.6614422e+21 = -4.6676314e+45 - 437913 = -4.6676314e+45 - 88878 = -4.6676314e+45

Ф = 500 , 5,000

5,000 / ∞ x ∞ x ∞ = 5,000^+++∞/ 68307147 = 0.00007319878^+++∞ - 917 - 974 - 9 - 19344381 = -19346280.9999^+++∞

-4.6676314e+45 -19346280.9999^+++∞ = -4.6676314e+45^+++∞

I believe that will be your answer.

I tried my best.

4 0
3 years ago
Line g is shown on the graph.
bogdanovich [222]

The equation of the line g that passes through points (-3, 2) and (0, 5), in slope-intercept form, is: y = x + 5.

<h3>How to Write the Equation of a Line in Slope-intercept Form?</h3>

Given the coordinates of two points that lie on a straight line on a graph, the equation that represents the line in slope-intercept form can be expressed as, y = mx + b, where:

Slope = m = change in y / change in x

y-intercept = b (the value of y when x = 0).

The coordinates of the two points on line g is given as:

(-3, 2) = (x1, y1)

(0, 5) = (x2, y2).

Find the slope (m) of the line:

Slope (m) = (5 - 2)/(0 - (-3))

Slope (m) = 3/3

Slope (m) = 1.

Y-intercept (b) = 5

Substitute m = 1 and = 5 into y = mx + b:

y = x + 5

The equation of the line in slope-intercept form is: y = x + 5.

Learn more about the slope-intercept equation on:

brainly.com/question/1884491

#SPJ1

5 0
2 years ago
Which list of numbers is in order from GREATEST to LEAST? 2.7, 2 1/2, 3/10,-1/9 is this right??
ikadub [295]
Yes you are correct.
8 0
4 years ago
Read 2 more answers
12-5x-4kx=y solve for x
Lana71 [14]
Hi there!

12 - 5x - 4kx = y&#10;&#10;-4kx - 5x = y - 12 &#10;&#10;Factor out variable x &#10;&#10;x(-4k-5)=y-12&#10;&#10;x = (y+12)/(4k+5)
3 0
3 years ago
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