Question

If mean and standard deviation of a distribution are 20 and 4 then coefficient of variation is

Answer 1

$\huge{\underline{\tt{Given:-}}}$

• $\textsf{Mean = 20}$

• $\textsf{Standard deviation= 4 }$

$\huge{\underline{\tt{To\:Find:-}}}$

• $\textsf{Coefficient of variance}$

$\huge{\underline{\tt{Solution:-}}}$

$\textsf{As we know that}$

${ \sf{coefficient \: of \: variance = { \boxed{ \bf{\frac{standard \: deviation}{mean} \times 100}}}}}$

$\textsf{putting the values;}$

$\implies \: { \tt{\frac{4}{20} \times 100}} \\ \\ \implies { \tt{\frac{4}{2{ \cancel{0} }} \times 10{ \cancel{0}}}} \\ \\ \implies{ \boxed{ \bf{20}}}$

•°• $\textbf{The Coefficient of variance is 20 }$