Statistic 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 is the median?

• 62

• 58

• 66

• 60

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

What percentage of the data is between 90 and 140?

• 25 %

• 50%

• 75%

• 100%

In order to find the median, the data must be sorted from least to greatest first.

• True

• False

Find the IQR (Q3 - Q1)  of the data

20, 22, 25, 29, 31

• 30

• 21

• 25

• 9

Calculate the range of the following 2, 5, 8, 3, 13, 5

• 11

• 13

• 5

• 8