Consider the frequency distribution
If the variance of this distribution is 60000 , then the coefficient of variation of the distribution is

• A

  60
• Correct answer
  B

  $\frac{400 \sqrt{6}}{17}$
• C

  $\frac{400 \sqrt{6}}{9}$
• D

  595.75

Solution

$\begin{array}{rlr}C V & =\frac{\sigma}{\bar{X}} \times 100 \quad\left[\text { as } \sigma^2=60000\right] \\ & =\frac{100 \sqrt{6}}{425} \times 100=\frac{400 \sqrt{6}}{17} .\end{array}$

Hence, the correct answer is option: 'B'.