Let the mean and the variance of 6 observations $a, b, 68, 44, 48, 60$ be 55 and 194, respectively. If $a > b$, then $a + 3b$ is (1) 200 (2) 190 (3) 180 (4) 210
Let the mean and the variance of 6 observations $a, b, 68, 44, 48, 60$ be 55 and 194, respectively. If $a > b$, then $a + 3b$ is\\
(1) 200\\
(2) 190\\
(3) 180\\
(4) 210