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,ten students each obtained a score of 15,and ten 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

To find the mean, we need to add up all the scores and divide by the total number of students:

(5 * 10) + (10 * 15) + (10 * 20) = 50 + 150 + 200 = 400

The total number of students is 25, so:

Mean = 400/25 = 16

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