To receive a C grade, a student must average more than 77 but less than or equal to 85 . If Ethan received a C in the course and had five grades of 78 , 79 76 , 64 , and 85 before taking the final exam, what were the possible grades for his final if there were 100 points possible?
The answer is 80-100. To figure this out, do the mean of 78, 79, 76, 64, 85, and 80. It's just above 77. Anything below it would be a D. Now, if you do the mean of all the given numbers and 100, it's 80.333. The max you can get on this test is 100.
