Calculating and Comparing Means in Everyday Life

A class of 5 students scored 80, 85, 90, 75, and 95 on a test. What is the mean score of the class?

• 88

• 91

• 85

• 82

In a basketball game, Team A scored 60, 70, and 80 points in three matches. What is the mean score of Team A?

• 70

• 75

• 65

• 85

Team B scored 50, 55, and 65 points in their games. How does Team B's mean score compare to Team A's mean score?

• Team B's mean score is 50.

• Team B's mean score is 60.

• Team B's mean score is 55.

• Team B's mean score is 56.67.

Emma has 4 books with the following page counts: 120, 150, 200, and 180. What is the mean number of pages in her books?

• 150

• 175

• 200

• 162.5

Liam's scores in math for the last 4 tests are 88, 92, 85, and 90. What is the mean score?

• 87.5

• 90.25

• 89

• 88.75

If Liam's mean score is 88 and he takes one more test scoring 94, what will be his new mean score?

• 89

• 90

• 92

• 91

A farmer harvested 200, 250, and 300 apples in three weeks. What is the mean number of apples harvested per week?

• 200

• 250

• 300

• 275

In a survey, 5 friends reported their ages as 10, 11, 12, 10, and 13. What is the mean age of the friends?

• 11.2

• 11.0

• 12.0

• 10.5

Compare the mean age of the friends to the mean age of a different group: 9, 10, 11, 12, and 13. Which group is older?

• Cannot determine without friends' ages.

• The friends are younger by 2 years.

• The friends are older by 1 year.

• The mean age of both groups is the same.

A store sold 30, 40, and 50 toys in three days. What is the mean number of toys sold per day?

• 35

• 45

• 40

• 30