Pat's last statistics test score was 72.If the instructor tells Pat that the grade distribution was approximately normal,the class mean was 67,and the standard deviation was 3,which of the following is correct?
A)A score of 72 is never good.
B)Pat should be worried about this score,because many other students did better.
C)Pat should be fairly happy about this score,because many students did not do as well.
D)Pat should be ecstatic,because this is obviously one of the highest grades in the class.

Question

Quizplus · Accepted Answer

A score of 72 is higher than the class mean of 67, and the standard deviation of 3 indicates that most of the scores fall within a few points of the mean. Therefore, Pat's score is above average and suggests that Pat performed fairly well compared to many other students in the class.

Pat's Last Statistics Test Score Was 72