The grades received on a test by twenty students were 100, 55, 75, 80, 65, 65, 95, 90, 80, 45, 40, 50, 85, 85, 85, 80, 80, 70, 65, and 60. What is the average of these grades?

A.) 70.5

B.) 72.5

C.) 77

D.) 80.3

E.) 100

Question

Amy

13 December, 19:07

+5

Answers (1)

Know the Answer?

Deanna Rollins · Answer 1

B. 72.5, because if you add all those numbers and divide it by how many number there are (there's 20 numbers) you'll get 72.5

The grades received on a test by twenty students were 100, 55, 75, 80, 65, 65, 95, 90, 80, 45, 40, 50, 85, 85, 85, 80, 80, 70, 65, and 60. What is the average of these grades?A.) 70.5B.) 72.5C.) 77D.) 80.3E.) 100