The mathematics SAT scores of the seven students in a mathematics seminar are 533, 553, 578, 586, 619, 626, and 633. Suppose that the student with the score 533 drops the seminar and is replaced by a student with a score of 585. What will happen to the mean and the median scores of the class?
A) Neither the mean nor the median will change.
B) Both the median and the mean will increase.
C) The median will increase; the mean will be unchanged.
D) The mean will increase; the median will be unchanged.

Question

Quizplus · Accepted Answer

The mean will increase because the sum of the scores increases when 533 is replaced by 585. The median remains unchanged at 586, as it is still the middle value in the ordered list.

The Mathematics SAT Scores of the Seven Students in a Mathematics