A class of 30 introductory statistics students took a quiz worth 100 points. The standard deviation of the scores was 0. What must be true about the students' scores?
A)The mean, median, and mode must all be 0.
B)Every student received the same score.
C)Every student scored 100 on the quiz.
D)There was an error in the calculation for standard deviation.

Question

Quizplus · Accepted Answer

If the standard deviation of the scores is 0, it means there is no variation among the scores, indicating that every student received the same score.

A Class of 30 Introductory Statistics Students Took a Quiz