What does the interquartile range describe?
A) The lower 50% of the observations
B) The middle 50% of the observations
C) The upper 50% of the observations
D) The lower 25% and the upper 25% of the observations

Question

Quizplus · Accepted Answer

The interquartile range is the difference between the 75th percentile (upper quartile) and the 25th percentile (lower quartile) of a dataset. Therefore, it describes the middle 50% of the observations.

What Does the Interquartile Range Describe