Question

The number of billionaires in a geographic region in the U.S. are given in the table....

The number of billionaires in a geographic region in the U.S. are given in the table. Complete parts​ (a) through​ (d) below.

State 1

15

State 2

14

State 3

14

State 4

7

State 5

5

c. Find and report the standard deviation of the number of billionaires per state.

The standard deviation of the number of billionaires per state is:

​(Round to the nearest tenth as​ needed.)

d. the number farthest from the mean that contributes the most to the given standard deviation is __ which represents the number of billionaires in ___.

Homework Answers

Answer #1
X X2
State 1 15 225
State 2 14 196
State 3 14 196
State 4 7 49
State 5 5 25
Sum = 55 691

The sample mean  is computed as follows:

Also, the sample variance is

Therefore, the sample standard deviation s is

. Find and report the standard deviation of the number of billionaires per state.

The standard deviation of the number of billionaires per state is:

s = 4.1 billionaires

d. the number farthest from the mean that contributes the most to the given standard deviation is 5 which represents the number of billionaires in State 5

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