If the mean and variance of observations $x, y, 12, 14, 4, 10, 2$ is 8 and 16 respectively where $\mathrm{x} > \mathrm{y}$. Then, the value of $3\mathrm{x} - \mathrm{y}$ is (A) 24 (B) 22 (C) 20 (D) 18
If the mean and variance of observations $x, y, 12, 14, 4, 10, 2$ is 8 and 16 respectively where $\mathrm{x} > \mathrm{y}$. Then, the value of $3\mathrm{x} - \mathrm{y}$ is
(A) 24
(B) 22
(C) 20
(D) 18