Solve.
-A class has 25 students. On a test, 3 students earned a 90, 8 students earned an 80,10 students earned a 70, 3 students earned a 60, and you earned a 75 . How did your score relate to the average (mean) of the class. Explain.
A) The grade was above the class average of 71.6.
B) The grade was exactly the same as the class average of 75 .
C) The grade was below the class average of 77.8.
D) The grade was above the class average of 74.6 .

Question

Quizplus · Accepted Answer

The mean is calculated as (3*90 + 8*80 + 10*70 + 3*60 + 1*75) / 25 = 74.6. Your score of 75 is above this average.

Solve. -A Class Has 25 Students. on a Test, 3 Students