Under what circumstances is it necessary to use the coefficient of variation to compare relative variability between two or more distributions?
A) When the means of the distributions are equal
B) When the means of the distributions are not equal
C) When the standard deviations of the distributions are not equal
D) When the standard deviations of the distributions are equal

Question

Quizplus · Accepted Answer

The coefficient of variation is used to compare relative variability between two or more distributions especially when the means of those distributions are not equal. It standardizes the measure of dispersion, making it possible to compare variability across datasets with different units or scales.

Under What Circumstances Is It Necessary to Use the Coefficient