Question

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 Jills quizzes? Show your work.

Answer 1

To find the 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.

Answer 2

The mean is the number that appears the most in a set of numbers. Since 4 appears twice, while all the other numbers appear only once, the mean is 4.