Box plots and interquartile range

Find the five-number summary, draw the box plot, and spot outliers with the IQR rule.

Standards:6.SP.B.4S-ID.A.1

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

A dataset of test scores has a box plot shown below. The minimum is 62, Q1 is 75, the median is 82, Q3 is 88, and the maximum is 95. What is the interquartile range (IQR)?

Question 2 of 3

A dataset has a minimum of 12, Q1 = 18, median = 24, Q3 = 32, and maximum of 40. What is the interquartile range (IQR)?

Question 3 of 3

A box plot shows the test scores for two classes. Class A has a median of 78 and an IQR of 12. Class B has a median of 82 and an IQR of 18. What is the difference between the two IQRs?

How this fits in

Box plots and interquartile range is one skill in the Statistics & Probability unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

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