What does it mean if the standard deviation of a distribution of quiz grades is 0?
A) An equal number of people received each grade (A, B, C, D, and E).
B) The distribution is a normal, bell-shaped curve.
C) Everyone in the class received the same grade or score.
D) Everyone in the class received a different grade.

Question

Quizplus · Accepted Answer

A standard deviation of 0 indicates that there is no variation in the data, meaning that every student received the same grade.

What Does It Mean If the Standard Deviation of a Distribution