Your Stats teacher tells you your test score was the 3rd quartile for the class. Which is true?
I. You got 75% on the test.
II. You can't really tell what this means without knowing the standard deviation.
III. You can't really tell what this means unless the class distribution is nearly Normal.
A) III only
B) I only
C) II only
D) none of these
E) II and III

Question

Quizplus · Accepted Answer

Being in the 3rd quartile means your score was higher than 75% of the class, not that you got a 75% score. The 3rd quartile's interpretation doesn't depend on knowing the standard deviation or the distribution being nearly Normal.

Your Stats Teacher Tells You Your Test Score Was the 3rd