Comparative Inferences with Box Plots

What is the median of the data?

• 200

• 100

• 90

• 140

Which restaurant has a higher median wait time?

• Lucy's Steakhouse

• Gary's Grill

• They are the same

Which car club has the higher median?

• Cruisers

• Car Hops

What is the minimum value?

• 64

• 58

• 66

• 60

Where is the FIRST QUARTILE?

Which car club has the higher median?

• Cruisers

• Car Hops

• Neither. Can't determine median from the graph.

What value is the lower quartile?

• 66

• 58

• 60

• 64

What data value is the upper quartile?

• 64

• 62

• 66

• 58

What is the interquartile range (IQR) of the data set?

• 20

• 25

• 5

• 10

Which of the following best describes the process of finding the interquartile range for a set of data?

• Add the biggest and smallest numbers.

• Place the numbers in order from least to greatest and find the middle.

• Find the difference between the maximum and the minimum.

• Subtract Q1 from Q3.