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) II only
B) I only
C) III only
D) none of these
E) II and III

Question

Quizplus · Accepted Answer

The 3rd quartile means you scored higher than 75% of the class, but it doesn't specify the percentage score you received. It also doesn't require knowledge of the standard deviation or the distribution being nearly Normal to understand its meaning.

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