The sums of the deviations of a set of `n` values `x_1, x_2,ddot,x_n` measured from `15` and `-3a r e-90` and `54` respectively. Find the value of `n` and mean.

The sums of the deviations of a set of n values x_(1),x_(2),..,x_(n) measured from 15 and -3 are -90 and 54 respectively.Find the value of n and mean.

The algebraic sum of the deviations of a set of n values form their mean is

The sums of the deviations of a set of values measured from 15 and respectively.Find the value of and mean.

The sum of the deviations of a set of n values x_1, x_2 ,.........x_n measured from 50 is-10 and the sum of deviations of the values from 46 is 70.Find the values of n and the mean.

The sum of the deviations of a set of n values x_(1),x_(2),.......x_(n) measured from 50 is -10 and the sum of deviations of the values from 46 is 70. Find the values of n and the mean.

The sum of deviations of a set of values x_(1), x_(2), x_(3), …… x_(n) measured from 50 is -10 and the sum of deviations of the values from 46 is 70. Find the value of n and the mean.

The sum of deviations of a set of values x_(1), x_(2), x_(3), …… x_(n) measured from 50 is -10 and the sum of deviations of the values from 46 is 70. Find the value of n and the mean.

The sum of the deviations of a set of values measured from and the sum of deviations of the values from 46 to 70. Find the values of and the mean.