Question

Mark of the student in a certain test is as follows 3, 1, 3, 1, 1, 2, 3, 2, 3, 5, 3, 4, 5, 3, 1, 4, 1, 5, 2, 5 . what is the mean to 1 s.f.?

Answer 1

2.85

Explanation:

• count the numbers given to you , which is 20
• then sum up the numbers , which is 57
• then divide the two answers
• which is 57/20=2.85