The students in Professor Jim's Chemistry class had the following scores on their exams (out of 100 pts):
13, 77, 77, 78, 80, 80, 83, 85, 90, 93, 94, 94, and 94. Find the following (round answer to nearest tenth where necessary):
A. Mean
B. Median
C. Mode
D. Which method seems to give the best estimate of average? Why?

Question

Quizplus · Accepted Answer

A. (13 + 77 x 2 + 78 + 80 x 2 + 83 + 85 + 90 + 93 + 94 x 3)/ 13 = 79.8; B. 83 is the median since it is the middle score; C. 94 is the mode since it appears most frequently; D. The median seems to the most accurate. 13 makes the score for mean unusually low, and mode happens to also be the highest score.

The Students in Professor Jim's Chemistry Class Had the Following