Statistics
Coefficient of Variation
JEE Main 2018
Grade 11
Question:
The coefficient of variation (C.V.) of a data set is defined as:
(1) $\left(\frac{\text{Mean}}{\text{S.D.}}\right) \times 100$
(2) $\left(\frac{\text{S.D.}}{\text{Mean}}\right) \times 100$
(3) $\text{S.D.} \times \text{Mean}$
(4) $\frac{\text{S.D.}}{\text{Mean}}$
Step-by-Step Solution
Key Concept: Recall that the coefficient of variation is a percentage measure used to compare the relative dispersion of two data sets having different units or different means.
The detailed step-by-step mathematical proof is available inside the Mathbee app workspace.
Correct Answer: (2)