Comparative Inferences with Dot Plots

The dot plots compare the number of raffle tickets sold by boys and girls during a school fund-raiser. Which plot has an outlier? 

• Girls
• Boys
• Both Plots
• Neither

What is the difference between the medians for the two data sets? 

• 0 tickets
• 2 tickets
• 4 tickets
• 6 tickets

Find the medians.
Science: _________ Math: __________ 

•  science: 4.5 h; math: 3 h
•  science: 3 h; math: 4.5 h
•  science: 5 h; math: 5 h
•  science: 3.5 h; math: 4 h

Compare the centers and spreads. 

•  Math has a higher median (center) and a wider spread.
•  Math has a higher median (center) and a smaller spread.
• Math has a lower median (center) and a smaller spread.
• Math has a lower median (center) and a wider spread.

What is the range in gas mileage for cars?

• 2
• 3
• 4
• 6

Are these dot plots symmetric?

• Yes
• No

Is the Cars dot plot skewed left or right?

• left
• right

Which statement correctly describes the shapes of the dot plots for cars and SUVs?

• SUVs: symmetrical
  Cars: skewed left
• Both are skewed left
• Both are symmetrical
• SUVs: skewed right
  Cars: Skewed left

The double dot plots show the average wait times in minutes for two popular rides at an amusement park. Compare the measures of center and variation, 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

What is the difference in the median gas mileage?

• 0
• 5
• 7