The table displays the scores of students on a recent exam. Find the mean of the scores to the nearest 10th.

Score Number of Students
8080 11
8585 66
9090 77
9595 22
100100 66
Answer

1 answer

The mean can be calculated using the formula:

Mean = (80*11 + 85*66 + 90*77 + 95*22 + 100*66) / (11 + 66 + 77 + 22 + 66)
Mean = (880 + 5610 + 6930 + 2090 + 6600) / 242
Mean = 23310 / 242
Mean ≈ 96.3

Therefore, the mean score of the students on the recent exam is approximately 96.3.