Make Comparative Inferences About Populations

Coach Lantz recorded the number of shots on goal players made during two weeks of a soccer game.

How much greater was week 2's mean than week 1's mean?

• 1

• 2

• 4

• 6

The box-and-whisker plots show the test scores of two different classes. Which class had a greater range of test scores?

• There is no range.
• 2nd period
• the ranges are the same
• 1st period

If you compare the medians of each data set, who spends more time online? (Which grade has a greater median?)

• 7th Graders

• 8th Graders

The box-and-whisker plots show the points scored in each Super Bowl by the AFC and NFC. For which division were 75% of the points scored greater than 16 points?

• AFC
• NFC
• both divisions
• neither division

Every Friday, the French Club sells bagels and the Spanish Club sells doughnuts to raise money for charity. The double dot plot shows how many items the clubs sell over several weeks. Which club typically sells more items?

• French Club
• No inference can be made from the graph.
• Spanish Club
• Both clubs sell the same number of items.

Use the box-and-whisker plots to determine which statement is not true.

• The interquartile range of the men’s ages is greater than the interquartile range of the women’s ages.
• The youngest member of the club is a woman.
• The median of the men’s ages is greater than the median of the women’s ages.
• The range of the men’s ages is greater than the range of the women’s ages.

The double dot plots show the average wait times in minutes for two popular rides at an amusement park. Which ride typically has a longer wait time?

• No inference can be made from the graph.
• Topsy Turvy
• The wait times are the same for both rides.
• Rocket Blast

The box-and-whisker plots show the points scored in each Super Bowl by the AFC and NFC. About how many points higher is the upper quartile for the NFC than the AFC?

• 5 points
• 7 points
• 10 points
• 15 points