Chapter 12 Review

Shantelle works in a music store. She records the number of CDs purchased by each customer in one day.

What is the most common number of CDs purchased by each customer?

• 1

• 2

• 3

• 4

Jacob collected the data set shown.

What attribute was he measuring for this data set?

• Fahrenheit

• thermometer

• daily temperature

• feet

The number of points scored by a football team in 6 different games are 26, 38, 33, 20, 3, and 28. What is the outlier in the data set?

• 3

• 25

• 27

• 38

Students at Meghann's school participate in a recycling program for one month. The amount of paper that is recycled each day, as well as the number of students who participated each day, is recorded. Which is not a statistical question for the situation?

• On what day did the recycling program begin?

• What is the least amount of paper recycled per day?

• What is the average number of students who participated each day?

• What is the greatest amount of paper recycled per day?

Mr. Cahill gave a quiz to his last-period science class. The students' scores are shown in the dot plot.

What score did more students receive than any other score?

• 70

• 80

• 90

• 100

Michelle recorded the number of customers who bought plain bagels at her bakery each day for one week. The customer counts are 15, 7, 6, 9, 10, 12, and 11. What is the mean of the data?

• 6

• 9

• 10

• 15

Alivia goes to lunch with 3 of her friends. The costs of their meals are $8, $4, $7, and $5. If they split the bill evenly, how much should each person pay?

• 3

• 6

• 9

• 15

The histogram shows the weekly allowances, in dollars ($), of 30 students.

How many students receive an allowance between $14 and $27?

• 3

• 6

• 12

• 18

The dot plot shows how many games 10 members of the chess club played last month.

What is the total number of games the members played last month?

• 10

• 21

• 32

• 61

Vic is training for a bicycle race. The table shows the number of miles he rides each day.

What is the mode of the data?

• 12

• 14

• 15

• 16