Data Variability

• A

• B

• C

• D

What information can be gathered from this Data Display? Select all the apply.

• Mean

• Median

• Mode

• Range

• None of these

Find the difference in the ranges in the double box plot.

• 7

• 8

• 2

• 1

Determine the difference in the interquartile ranges.

• 25

• 20

• 30

• 15

Which data set shows more variability? Explain your answer.

• Female

• Male

• Not enough information

Which measure of variability should you use?

• IQR

• standard deviation

Which set has greater variability?

• A

• B

What conclusion can Ms. Long make about the performance of her first- and second-period classes?

• The first-period class had a higher median score than the second-period class.

• The second-period class scores had a higher mean than the first-period class scores.

• The first-period class scores had a greater range than the second-period class scores.

• The second-period class scores had a greater mean absolute deviation than the first-period class scores.

Given the dot plot's shape, what measure of variability should be used?

• Mean

• Median

• Standard Deviation

• IQR

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.