Question

Here are three numbers:

5
7
9
Show that the mean of these three numbers is 7.

Answer 1

7 is in the middle of 5 and 9 with 1 number between each

Answer 2

Explanation:

Mean = Sum of Terms/ Number of terms

Hence mean of 5,7,9

Sum of numbers = 5+7+9=21

number of terms = 3

mean = 21/3

mean = 7