Question

The mean of 8, 9, 12, 14, x and 13 is 66.Find the value of .

Answer 1

Step-by-step explanation:

$\frac{8 + 9 + 12 + 14 + x + 13}{6} = 66 \\ 8 + 9 + 12 + 14 + x + 13 = 396 \\ x = 396 - 13 - 14 - 12 - 9 - 8 \\ x = 340$