Comparing Two Data Distributions

What is the range of the data shown?

• 85
• 90
• 80
• 70

• A

• B

• C

• D

• A

• B

• C

• D

• F

• G

• H

• J

Which is a true statement based on the dot plots above?

• Set B has the greater range

• Set B has the greater median

• Set B has the greater mean

• Set A is less symmetric that Set B

• only one of the data sets is symmetric
• the median in 1st period is greater than the median in 5th period
• the highest test score is the same in both classes
• the interquartile range is larger in 1st period than in 5th period

Compare the median and range. 

•  Math has a higher median and a wider range.

•  Math has a higher median and a smaller range.

• Math has a lower median and a smaller range.

• Math has a lower median and a wider range.

Is the Cars dot plot skewed left or right?

• left
• right

What is the shape of the distribution?

• The distribution is approximately symmetrical.

• The distribution is skewed to the right.

• The distribution is skewed to the left.

• The distribution is approximately uniform.

Which of the following statements are true?

I. Both sets have the same mean.

II. Both sets have the same range.

III. Both sets have the different range.

• I only.

• I and II.

• i and III.

• I, II, and III.