If both the mean and the standard deviation of 50 observations x_1, x_2, , x_ 50 are equal to 16, then the...

Question

If both the mean and the standard deviation of 50 observations x_1, x_2, , x_ 50 are equal to 16, then the mean of (x_1 - 4)^2, (x_2 - 4)^2, , (x_ 50 - 4)^2 is:

Accepted Answer

(A)

JEE Main 2019 Mathematics question

Solution