Explanation Definition: For a set of data with mean x ¯ and standard deviation s , we define the coefficient of variation, denoted by CV , as C V = s x ¯ ⋅ 100 % . Calculation: The average number of miles driven by the millennials is 37.5 with standard deviation 6. Therefore, the coefficient of variation for the millennials is given by C V = 6 37.5 ⋅ 100 % = 16 %

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ISBN: 9780134506470

Author: Pirnot

Publisher: PEARSON

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Chapter 14.3, Problem 34E

To determine

To compare:

The relative variability in the number of miles for millennials and the persons reaching adulthood if the number of miles per day driven by millennials in 2015 averaged 37.5 with standard deviation 6, and that for the persons reaching adulthood in 1995 was averaged 51 with standard deviation 8.

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Chapter 14.3, Problem 33E

Chapter 14.3, Problem 35E

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Solution Summary: The author compares the relative variability in the number of miles for millennials and the persons reaching adulthood.

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