Which of the following is true about the interquartile range?
A) It is the highest score minus the lowest score in a set of data.
B) It is based on all of the scores in the set of data.
C) It is calculated by removing the highest and lowest 25% of scores.
D) It includes all of the scores except the highest 25% of scores.

Question

Quizplus · Accepted Answer

The interquartile range is the range between the upper quartile (Q3) and the lower quartile (Q1) of a set of data. This means that when calculating the interquartile range, we remove the highest and lowest 25% of scores, which is equivalent to removing the outliers or extreme scores in the dataset.

Which of the Following Is True About the Interquartile Range