The 25 students in the psychology class take a 20-point quiz.Five of the students each obtained a score of 10 on the quiz,10 students each obtained a score of 15,and 10 students each obtained a perfect scores of 20.What would be the mean of these scores?
A)12
B)14
C)16
D)18

Question

Quizplus · Accepted Answer

The mean is calculated by dividing the total sum of all scores by the number of students. The total sum is (5*10) + (10*15) + (10*20) = 50 + 150 + 200 = 400. The mean is 400/25 = 16.

The 25 Students in the Psychology Class Take a 20-Point