box plot review

True or False
The interquartile range is the difference between the upper quartile (Q3) and the lower quartile (Q1).

• True

• False

Find the interquartile range using the following.
Minimum:  1
Q1:  3
Median:  5
Q3:  7
Maximum:  9

• 8

• 4

• 5

• 10

What data value is the upper quartile (Q3)?

• 64

• 62

• 66

• 58

What is the median?

• 62

• 58

• 66

• 60

What value is the lower quartile (Q1)?

• 66

• 58

• 60

• 64

What is the interquartile range (IQR)?

• 4

• 64

• 60

• 8

Which restaurant has a higher median wait time?

• Lucy's Steakhouse

• Gary's Grill

• They are the same

Use the box plot to answer the question.

• 14

• 18

• 15

• 12

Use the box plot to answer the question.

• 15

• 18

• 9

• 30

What is the lower quartile (Q1) of the data set?

• 25

• 30

• 26

• 28