The interquartile range includes the middle-most
A) 25% of the cases
B) 50% of the cases
C) 75% of the cases
D) 95% of the cases

Question

Quizplus · Accepted Answer

The interquartile range (IQR) represents the range of the middle 50% of the cases, which includes the 25th to the 75th percentile. Therefore, the correct choice is B, which states that the IQR includes 50% of the cases. Choices A, C, and D are incorrect because they either underestimate or overestimate the range of cases included in the IQR.

The Interquartile Range Includes the Middle-Most