Question

The mean of the data set is 18 what’s the missing number 21,11,blank,27,22,13,16

Answer 1

9514 1404 393

Answer:

16

Explanation:

The sum of the 7 numbers needs to be 7·18 = 126.

Then the missing number is ...

126 -21 -11 -27 -22 -13 -16 = 16