The interquartile range is _____.
A) the 50th percentile
B) another name for the variance
C) the difference between the largest and smallest values
D) the difference between the third and first quartiles

Question

Quizplus · Accepted Answer

The interquartile range is the difference between the third and first quartiles, which corresponds to the middle 50% of the data. Option A is incorrect because the 50th percentile is the median, which is not necessarily the interquartile range. Option B is incorrect because the variance is a measure of the spread of the data and is calculated differently from the interquartile range. Option C is also incorrect because the difference between the smallest and largest values is the range, not the interquartile range.

The Interquartile Range Is _____