Finding Means and Identifying Trends with Line Plots

A class recorded the number of books read by each student: 5, 7, 8, 6, and 9. What is the mean number of books read?

• 6

• 8

• 10

• 7

The heights of five plants are recorded as follows: 12 cm, 15 cm, 10 cm, 14 cm, and 13 cm. What is the mean height of the plants?

• 14.2 cm

• 13.5 cm

• 11 cm

• 12.8 cm

In a survey, the number of pets owned by students is: 2, 3, 1, 4, and 2. What is the mean number of pets owned?

• 2.0

• 3.2

• 2.4

• 1.8

A teacher tracks the scores of her students on a math test: 85, 90, 78, 88, and 92. What is the mean score?

• 87.5

• 85.0

• 86.6

• 90.0

The number of hours spent on homework by five students is: 2, 3, 4, 1, and 5. What is the mean number of hours spent?

• 4

• 3

• 6

• 2

A line plot shows the number of ice creams sold each day: 10, 12, 15, 10, and 14. What is the mean number of ice creams sold?

• 11

• 13

• 14.5

• 12.2

The ages of children in a playground are: 5, 6, 7, 5, and 8. What is the mean age of the children?

• 6.2

• 5.5

• 7.0

• 6.0

A line plot shows the number of games played by students: 3, 4, 5, 3, and 6. What is the mean number of games played?

• 4.2

• 4.0

• 3.5

• 5.0

The number of stickers collected by students is: 20, 25, 30, 20, and 15. What is the mean number of stickers?

• 30

• 22

• 18

• 25

A line plot shows the number of hours spent reading by students: 1, 2, 3, 2, and 4. What is the mean number of hours spent reading?

• 2.4

• 1.5

• 2.0

• 3.0