Question

Find the missing number given the data points and mean.

23, 15, 8, x, 26, 5, 22, 9
the mean is 15.

Answer 1

Answer:

Step-by-step explanation:

W

Answer 2

Answer:

x = 12

Step-by-step explanation:

There are 8 data in total.

The mean is 15, so that

$\frac{23 + 15 + 8 + x + 26 + 5 + 22 + 9}{8} = 15 \\ \frac{108 + x}{8} = 15 \\ 108 + x = 120 \\ x = 12$