Chapter 10 Data Display Review

Describe the shape of distribution of the dot plot.

• symmetrical

• skewed left

• skewed right

Choose the most appropriate measure to describe center.

• Median

• Mean

Choose the most appropriate measure to describe variation.

• MAD

• IQR

Calculate the measure to describe center and variation of the data.

• Mean = 2; MAD = 0.9333....

• Median = 2; IQR = 2

Describe the shape of distribution of the dot plot.

• Skewed Left

• Skewed Right

• Symmetric

Which interval contains no data values?

• 70-79

• 60-69

• 50-59

• 20-29

• 0-19

How many lottery winners were there all together?

• 8

• 30

• 79

• 9

Ages of teachers (in years): 30, 62, 26, 35, 45, 22, 49, 32, 28, 50, 42, 35; Find the 5 data values that make up a box-and-whisker plot.

• Lower Extreme: 30, First Quartile 29, Median 34.5, Third Quartile 47, Upper Extreme 62

• Lower Extreme: 22, First Quartile 29, Median 35, Third Quartile 47, Upper Extreme 62

• Lower Extreme: 22, First Quartile 29, Median 32, Third Quartile 47, Upper Extreme 62

• Lower Extreme: 30, First Quartile 28, Median 42 Third Quartile 46, Upper Extreme 62

What is the interquartile range (IQR)?

• 60

• 64

• 4

• 8

What percent is less than or equal to 85?

• 25%

• 50%

• 75%

• 100%