Problem:
On an algebra quiz, of the students scored points, scored points, scored points, and the rest scored points. What is the difference between the mean and the median of the students' scores on this quiz?
Answer Choices:
A.
B.
C.
D.
E.
Solution:
Because over of the students scored or lower, and over of the students scored or higher, the median score is . The mean score is
for a difference of .
The problems on this page are the property of the MAA's American Mathematics Competitions