High School Math : Using Box and Whisker Plots

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #1 : How To Use Boxplots To Summarize A Data Set

The horizontal line in the box of the box and whisker plot represents _____________.


Possible Answers:





Interquartile range

Correct answer:



A box and whisker plot separates the data into quartiles so that each quartile has an equal number of data points. The box indicates the interquartile range, that is, the top line of the box is the third quartile and the bottom line of the box is the second quartile. The line separating the second and third quartiles indicates the median. The lines outside of the box indicate the outer-quartiles (first and fourth).

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