The mean and variance of 7 observations are 8 and 16, respectively. If five observations are $2, 4, 10, 12, 14$ then the absolute difference of the remaining two observations is : (1) 1 (2) 4 (3) 2 (4) 3
The mean and variance of 7 observations are 8 and 16, respectively. If five observations are $2, 4, 10, 12, 14$ then the absolute difference of the remaining two observations is :\\
(1) 1\\
(2) 4\\
(3) 2\\
(4) 3