If the arithmetic mean and coefficient of variation of `x` are `10` and `40` respectively then the variance of `-15+(3x)/2` will be

If mean and coefficient of variation of x are 10% and 40% respectively, the variance of x is

If arithmetic mean and coefficient of variation of x is 6 and 50% respectively, then what is the variance of x?

If A.M. and coefficient of variation of x is 6 and 50% respectively, then variance of x is

If arithmetic mean and coefficient of variation of a variable x are 10 and 50% respectively, find Var (5 - 2x).

If AM and coefficient of variation of x is 10 and 40 then what is the variance of (15-2x)

If the mean and variance of a binomial variate X are 8 and 4 respectively then P(X lt 3)=

Find the mean if the coefficient of variation is 5% and variance is 4.

Suppose arithmetic mean of "10" observations is "10" and variance is "40." Further let arithmetic mean and variance of "6" observations from these "10 observations be "6" and "20" respectively.Then the variance of remaining observations is