Question

1. Jill had the following scores on quizzes. 0: 0 quizzes 1: 1 quiz 2: 3 quizzes 3: 4 quizzes 4: 4 quizzes 5: 1 quiz What is the mean score for Jill’s quizzes? Show your work.

Answer 1

To answer this item, we add up all the scores and divide the sum by the total number of quizzes. 
                    0: 0 quizzes
                    1 : 1 quiz                     total  : 1
                    2: 3 quizzes                total : 6 
                    3: 4 quizzes                total : 12
                     4: 4 quizzes               total : 16 
                    5: 1 quiz                      total : 1

There are 13 quizzes and the total score is 36. Dividing the total score by the total number of quizzes will give us a final answer of 2.77.