What do the quartile deviation and the interquartile range describe?
A) Lower 50% of the observations
B) Middle 50% of the observations
C) Upper 50% of the observations
D) Lower 25% and the upper 25% of the observations
E) None of the choices are correct.

Question

Quizplus · Accepted Answer

The quartile deviation and the interquartile range describe the spread of the middle 50% of the observations in a data set, which is the range between the first quartile (Q1) and the third quartile (Q3).

What Do the Quartile Deviation and the Interquartile Range Describe