3.2.7 Question Help Listed below are the top 10 annual salaries (in millions of
ID: 3042532 • Letter: 3
Question
3.2.7 Question Help
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general?
3838363635352828202016161313998.88.87.67.6
The range of the sample data is $
30.430.4 million. (Type an integer or a decimal.)
The variance of the sample data is
nothing. (Round to two decimal places as needed.)
Enter your answer in the answer box and then click Check Answer.
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3.2.7 Question Help
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general?
3838363635352828202016161313998.88.87.67.6
The range of the sample data is $
30.430.4 million. (Type an integer or a decimal.)
The variance of the sample data is
nothing. (Round to two decimal places as needed.)
Enter your answer in the answer box
Explanation / Answer
1) mean = (38 + 36 + 35 + 28 + 20 + 16 + 13 + 9 + 8.8 + 7.6)/10 = 21.14
variance = ((38 - 21.14)^2 + (36 - 21.14)^2 + (35 - 21.14)^ + (28 - 21.14)^2 + (20 - 21.14)^2 + (16 - 21.14)^2 + (13 - 21.14)^2 + (9 - 21.14)^2 + (8.8 - 21.14)^2 + (7.6 - 21.14)^2)/9 = 146.8
standard deviation = sqrt(146.8) = 12.12
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