A class has 3 students who scored 90 on a test, 5 students who scored 80, and 2 students who scored 60. What is the average (mean) score for the class?

✓ Correct Answer: Option B

Calculate the total points: (3*90) + (5*80) + (2*60) = 270 + 400 + 120 = 790. The total number of students is 3 + 5 + 2 = 10. The average is 790 / 10 = 79.0.