Coefficients of variation of two distributions are 50 and 60, and their arithmetic means are 30 and 25, respectively. Difference of their standard deviations is

Coefficient of variation of two distributions are 50 and 60, and their arithmetic means are 30 and 25 respectively. Difference of their standard deviation is ……

The coefficient of variation of distributions are 50 and 60 and their arithmetic means are 30 and 25 respectively. The difference of their standard deviations is

If the coefficient of variation of two distribution are 50 ,60 and their arithmetic means are 30 and 25 respectively then the difference of their standard deviation is

If the coefficient of variation of two distribution are 50 ,60 and their arithmetic means are 30 and 25 respectively then the difference of their standard deviation is

Coefficients of variation of two distribution are 15 and 20 and their means are 20 and 10 respectively. If their standard deviations are sigma_1 and sigma_2 then

Coefficients of variation of two distribution are 15 and 20 and their means are 20 and 10 respectively. If their standard deviations are sigma_1 and sigma_2 then