The coefficient of variation cannot be meaningfully used to compare the variability of two or more sets of data, when
A)The standard deviation is zero for one or more sets of data
B)The standard deviation is 1 for one or more sets of data
C)The mean is zero for one or more sets of data
D)The mean is 1 for one or more sets of data

Question

Quizplus · Accepted Answer

The coefficient of variation is calculated as the standard deviation divided by the mean. If the mean is zero, this calculation results in division by zero, which is undefined, making the coefficient of variation meaningless in this context.

The Coefficient of Variation Cannot Be Meaningfully Used to Compare