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

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 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

In a series of observations , coefficient of variation is 16 and mean is 25 . Find the variance .

If the mean of a frequency distribution is 100 and the coefficient of variation is 45%, then what is the value of the variance?

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

If the correlation coefficient between x and y is 0.6, covariance is 27 and variance of y is 25, then what is the variance of x?

If coefficient of correlation is -0.6, standard deviation of x is 5 and variance of y is 16, then what is the co-variance of x and y?