An examination that clearly distinguished between those students who knew the material and those who did not would most likely yield a distribution.
A)symmetrical
B)bimodal
C)unimodal
D)unimodal and symmetrical

Question

Quizplus · Accepted Answer

A bimodal distribution would be most likely because there would be a group of students who knew the material well and scored high, and a group of students who did not know the material and scored low. This would create two peaks or modes in the distribution.

An Examination That Clearly Distinguished Between Those Students Who Knew