Find out standard deviation and coefficient of variation .

Calculate the standard deviation and coefficient of variation .

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

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

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

The standard deviation and coefficient of variation of a data are 1.2 and 25.6 respectively. Find the value of mean.

Find out standard deviation and its coefficient of the following series:

Calculate the standard deviation and coefficient of standard deviation of the following series:

The mean, median and the coefficient of variation of a distribution are respectively 45, 42 and 40%. Find the standard deviation, mode and coefficient of skewness.

Calculate standard deviation and the coefficient of standard deviation, given the following data: