Analyzing Data: Measures of Center for 7th Graders

A class of students took a math test. The scores were: 85, 90, 75, 80, and 95. What is the mean score of the class?

• 75

• 80

• 85

• 90

In a survey, the ages of five friends are: 12, 14, 13, 15, and 12. What is the median age of the friends?

• 12

• 14

• 15

• 13

The heights (in inches) of five plants are: 24, 30, 28, 26, and 32. Calculate the range of the plant heights.

• 4 inches

• 6 inches

• 10 inches

• 8 inches

A bakery sells cupcakes for $2 each. If the prices of cupcakes sold in a week are: $2, $2, $3, $2, and $4, what is the mode of the prices?

• $4

• $3

• $2.50

• $2

In a basketball game, the points scored by players are: 10, 15, 10, 20, and 15. What is the mean score of the players?

• 12

• 16

• 14

• 18

A teacher recorded the number of books read by students in a month: 3, 5, 2, 5, and 4. What is the median number of books read?

• 5

• 3

• 4

• 2

The temperatures (in degrees) recorded over a week were: 70, 75, 80, 75, and 85. What is the range of the temperatures?

• 25

• 20

• 10

• 15

In a race, the times (in seconds) taken by five runners are: 12, 15, 12, 14, and 16. What is the mode of the race times?

• 14

• 12

• 15

• 16

A store sells pencils for $1 each. If the sales for a week are: $1, $2, $1, $3, and $1, what is the mean sales amount?

• 2.0

• 3.0

• 1.0

• 1.6

The number of pets owned by students in a class are: 1, 2, 2, 3, and 4. What is the median number of pets owned?

• 3

• 2

• 1

• 5