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

Question

Quizplus · Accepted Answer

The interquartile range (IQR) is defined as the range of the middle 50% of the observations. It is calculated by subtracting the first quartile (Q1) from the third quartile (Q3) of the data set. This measure is often used as a measure of variability, as it indicates the spread of the data in the middle of the distribution, while excluding outliers or extreme values.

What Does the Interquartile Range Describe