Question

A boy scored the following marks in various class tests a year, each test being marked out of 20: 15,17, 16, 7, 9, 12, 14,16,3 ,19, 12, 16 i) What are his mean marks? ii) Find the median?​

Answer 1

13 Mean, 14.5 Median

Explanation:

Mean: Add all of the numbers up, and you should get 128, then divide by 12 (number of tests) to get 13.