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

Question

Score Number of Students
7575 11
8080 22
8585 88
9090 33
9595 99

Answer 1

To find the mean of the scores, we need to calculate the sum of all the scores and divided it by the total number of students.

Sum of Scores = (75 * 11) + (80 * 22) + (85 * 88) + (90 * 33) + (95 * 99) = 12825 + 17600 + 7480 + 2970 + 9405 = 52080
Total Number of Students = 11 + 22 + 88 + 33 + 99 = 253

Mean = Sum of Scores / Total Number of Students
Mean = 52080 / 253
Mean = 205.5

Therefore, the mean of the scores to the nearest 10th is 205.5.