Box Plots

Box Plots

By Kaylie Eckhout

Box plots are a way of representing the spread of data.

​

​Some text here about the topic of discussion.

How to read a box plot

​Minimum or smallest value

Maximum or largest value

​Range of data= Maximum-Minimum

Fill in the Blanks

Fill in the Blanks

How to read a box plot

​Lower Quartile Q1

​Upper Quartile Quartile Q3

​25%

​25%

​25%

​25%

Multiple Choice

What percentage of scores were between 20 and 30?

• 0%

• 25%

• 50%

• 75%

Multiple Choice

What percentage of scores were between 30 and 70?

• 0%

• 25%

• 50%

• 75%

How to read a box plot

​Interquartile

​Interquartile Range:

Q3-Q1​

​Q1

​Q3

Multiple Choice

What is the interquartile range of these scores?

• 50

• 70

• 40

• 30

Multiple Choice

What is the median?

• 62
• 58
• 66
• 60

Multiple Choice

What is the interquartile range (IQR)?

• 4
• 64
• 60
• 8

Multiple Choice

What percentage of the data is between 90 and 140?

• 25 %
• 50%
• 75%
• 100%

Multiple Choice

What is the minimum value?

• 64
• 58
• 66
• 60

Fill in the Blanks

Fill in the Blanks

Multiple Choice

Which car club has the higher median?

• Cruisers

• Car Hops

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

Multiple Choice

The box-and-whisker plots shown below represent the salaries of employees at two different

companies.

What is the difference between the median salaries of the employees at the two companies?

• $0

• $500

• $1000

• $2000