The sum of 10 values is 100 and the sum of their squares is 1,090. Find the Coefficient of Variation.

The sum of 10 items is 12 and sum of their squares is 18, then find the standard deviation ?

The sum of 10 items is 12 and sum of their squares is 18, then find the standard deviation ?

If the sum of three numbers is 10 and the sum of their squares is 38, find the sum of the products of the three numbers taking two at a time.

The sum of 10 items is 12 and sum of their squares is 18, then standard deviaiton is

The sum of 10 items is 12 and sum of their squares is 18, then standard deviaiton is

The sum of two numbers is 7 and the sum of their cubes is 133. Find the sum of their squares

The sum of infinite number of terms in G.P. is 20 and the sum of their squares is 100. Then find the common ratio of G.P.

The sum of infinite number of terms in G.P.is 20 and the sum of their squares is 100. Then find the common ratio of G.P.

The sum of infinite number of terms in G.P. is 20 and the sum of their squares is 100. Then find the common ratio of G.P.