Worksheet

Interquartile Range

Interquartile Range

The interquartile range (IQR) is the difference between the third quartile and the first quartile in a given data set. In this sixth-grade statistics worksheet, students will review this definition, along with an example problem that demonstrates how to find the first and third quartiles and then subtract them to find the interquartile range. Then students will use what they've learned to practice finding the interquartile range of eight data sets of varying difficulty.

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