Application of coefficient of Variation

Calculate the standard deviation and coefficient of variation .

Find out standard deviation and coefficient of variation .

Find the mean ,standard deviation and coefficient of variation for the following frequency distribution .

Calculate the standard deviation and coefficient of variation of age of members of a society .

Calculate range, standard deviation and coefficient of variation of marks secured by students.

Consider the following distribution: find the coefficient of variation of marks.

If the variance of a distribution is 4 coefficient of variation is 5%,then mean of the distribution is ___

In a series of observations , coefficient of variation is 16 and mean is 25 . Find the variance .