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Variance

{title2=$\operatorname{CV}(X)$}
{wiki}

For a random variable with nonzero mean, the coefficient of variation is the dimensionless ratio
$$
\operatorname{CV}(X)=\frac{\sqrt{\operatorname{Var}(X)}}{|\mathbb E X|}.
$$


Coefficient of variation

Past exam of the mathematics course of the University of Cambridge / 2019 / iii / Paper 219 / 2 / c / Solution

Coefficient of variation ( $CV (X)$ )

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Coefficient of variation (CV(X))

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