Question

The two box-and-whisker plots below show the scores on a math exam for two classes. What do the interquartile ranges tell you about the two classes?

Answer 1

The students in Class B have large mix of students who understood the class subject matter AND about the same who did not. Class A students was more consistent in that the students tended to all have the same knowledge of the class material.

This indicates that students in Class B have students that should be placed in more remedial courses and separated from those students who tend to be better able to understand the course material.