Question

The mean for the data set is 15. What number is missing? 18,16, __,9,12,23

Answer 1

Hello answer 12

18 + 16 + 12 + 9 + 12 + 23 = 90 90 ÷ 6 = 12 therefore the missing number is 12 because when you add all the numbers amd divide by the numbers of number you get 15

Answer 2

Answer:

12

Step-by-step explanation:

$\frac{18 + 16 + 9 + 12 + 23 + x}{6} = 15$

x = 90 - (18 + 16 + 9 + 12 + 23 )

x = 12