If the coefficient of variation and variance of a frequency distribution are 7.2 and 3.24 respectively, then its mean is

Question

Accepted Answer

Correct answer: B. (b) Let mean =x Given, coefficient of variation, C.V. =7.2 Variance, ^2=3.24 ⇒ C.V. = x 100 7.2= 1.8x 100 ⇒x= 1.87.2 100 ⇒x=25

$If the coefficient of variation and variance of a frequency distribution are 7.2 and 3.24 respectively, then its mean is$