Question
Let the mean and variance of 8 numbers $x, y, 10,12,6,12,4,8$ be $9$ and $9.25$ respectively. If $x > y$, then $3 x-2 y$ is equal to _____________.
Correct Answer
25
Let the mean and variance of 8 numbers $x, y, 10,12,6,12,4,8$ be $9$ and $9.25$ respectively. If $x > y$, then $3 x-2 y$ is equal to _____________.