A professor announced to her class that the average score for the 37 exams received was 86. She later discovered three additional exams with scores of 76, 81 and 97. These exams were not included in the class average she

reported to the class. Is it possible to calculate the new class average? If so, what is it? If not, justify why.

Question

Mathematics

Tiara Preston

25 January, 14:11

A professor announced to her class that the average score for the 37 exams received was 86. She later discovered three additional exams with scores of 76, 81 and 97. These exams were not included in the class average she

reported to the class. Is it possible to calculate the new class average? If so, what is it? If not, justify why.

+4

Answers (1)

Know the Answer?

Kalan · Answer 1

New average = 85.9.

Step-by-step explanation:

Yes, the new class average can be calculated.

The New total of the scores = 37*86 + 76 + 81 + 97

= 3436.

The new total of examinations sat = 37 + 3 = 40.

Therefore the new class average = 3436 / 40

= 85.9