Multiple choice

Find the average of 8, 9, 13, 15 & 15

  1. 10

  2. 11

  3. 12

  4. 13

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sum = 8 + 9 + 13 + 15 + 15 = 60. Average = 60 / 5 = 12.

AI explanation

Using the basic average formula, sum all the values and divide by the count of numbers. The sum of 8, 9, 13, 15 and 15 is 60, and dividing this by 5 gives 12. The result is 12.