Rob scored exactly in the middle of his class on the social studies exam.A valid interpretation of Rob's performance is that he scored exactly at the
A)center of a symmetrical frequency distribution.
B)mean of the class.
C)median of the class.
D)mode of the class.

Question

Quizplus · Accepted Answer

If Rob scored exactly in the middle of his class, it means that half of the class scored below him and half of the class scored above him. This is the definition of the median in a symmetrical frequency distribution. The mean and mode may not necessarily be in the middle of the distribution, so they cannot be valid interpretations of Rob's performance in this context.

Rob Scored Exactly in the Middle of His Class on the Social