Calculate the standard deviation and coefficient of variation .

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

Given the height (in cm) of 10 persons , calculate standard deviation and coefficient of variation : 170 , 165 , 150 , 154 , 163 , 169 , 155 , 153 , 164 , 168

Given the marks of ten students , calculate standard deviation and coefficient of variation : 70 , 80 , 90 , 85 , 65 , 55 , 75 , 84 , 97 , 59

Find out standard deviation and coefficient of variation .

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

Following are the marks obtained by 10 students of a class. Calculate standard deviation and coefficient of standard deviation.

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

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

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