If standard deviation of a given data is 5 and mean is 50 then coefficient of variation (C.V) is equal to

Find out standard deviation and coefficient of variation .

The sum of the squares of deviation of 10 observations from their mean 50 is 250, then coefficient of variation is

If the mean of 10 observation is 50 and the sum of the square of the deviations of observation from the mean is 250, then the coefficient of variation of these observation is

Calculate the standard deviation and coefficient of variation .

Given the following data, calculate coefficient of variation:

For a given distribution of marks mean is 35.16 and its standard deviation is 19.76. The coefficient of variation is :