If mean and variance of 2, 3, 16, 20, 13, 7, x, y are 10 and 25 respectively then find xy

The mean and variance of 5,7,12,10,15,14,a,b are 10 and 13.5 respectively then value of |a-b|=

The mean and variance of 5,7,12,10,15,14,a,b are 10 and 13.5 respectively then value of |a-b|=

If the mean and variance of eight numbers 3, 7, 9, 12, 13, 20, x and y be 10 and 25 respectively, then x.y is equal to _______.

If the mean and variance of eight numbers 3, 7, 9, 12, 13, 20, x and y be 10 and 25 respectively, then x.y is equal to _______.

Mean and variance of 7 observation 2,4,10,12,14,x,y are 8 and 16 respectively. find xy is

Let the mean and variance of four numbers 3, 7, x and y (x gt y) be 5 and 10 respectively. Then the mean of four numbers 3 + 2x, 7 + 2y, x + y and x - y is ___ _

If the mean and variance of six observations 7,10, 11, 15 a, b are 10 and (20)/(3), respectively, then value of |a-b| is equal to :

The mean and variance for the data 6,7,10,12,13,4,8,12 respectively are