7
QuizMultiple Choice

Comparing Box Plots — Quiz

Question 7 • Grade 7 Mathematics

Josef says that the range for the car data is greater than the range for the minivan data because the box in the box plot for the car data is wider. Which explains Josef’s error?

Answer
A
Josef confused the range and the median.
B
Josef should have compared the medians and minimum values.
C
Josef confused the range and the interquartile range.
D
Josef should have compared the medians and maximum values.

Explanation

The range is the difference between the maximum and minimum values, while the interquartile range (IQR) is the width of the box, from the first quartile to the third quartile. Josef used the wider box as evidence of a greater range, so he confused the range with the interquartile range.

AI-written and checked against the verified answer.

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