Comparing Data Sets

Select all that are true.

• The top box and whisker plot is the Florida Marlins.

• The bottom box and whisker plot has a bigger standard deviation.

• Both box and whisker plots have roughly equal medians.

• Both box and whisker plots are skewed right.

• The top box and whisker plot has a bigger standard deviation.

Given the dot plot and box and whisker, which statements are true? Select all that apply.

• The range can be found by analyzing the dot plot.

• The range can be found by analyzing the box and whisker plot.

• It's easier to find the median with the box and whisker plot.

• You can find the average from the box and whisker plot.

• You can find the average from the dot plot.

The dot plots compare the number of raffle tickets sold by boys and girls during a school fund-raiser. Which is skewed left?

• girls
• boys
• neither
• both

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

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

What is the difference in the interquartile ranges?

• 1
• 2
• 4
• 5

Which data set shows a greater spread?

• Chess Club
• Checkers Club
• They have the same spread.
• You cannot tell from the box plots. 

What percent of each class studied less than 4 hours? 
Science: _________ Math: __________  

• science: 68.9%; math: 16.3%
• science: 58.9%; math: 76.3% 
• science: 78.9%; math: 26.3% 
• science: 26.3%; math: 78.9% 

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.

Compare the interquartile range of high temperatures in City A to the interquartile range range of high temperatures in city B.

• A has a larger IQR

• A has a smaller IQR

• Not possible

Compare the two dotplots. Which statement is true?

• Boys and girls had the same spread/range in their times.

• Boys generally had longer times than girls.

• The center of the boys' times is lower than the center for the girls times.

• Both dotplots are skewed right.