To find the mean of the scores, we need to calculate the sum of all the scores multiplied by the number of students, then divide by the total number of students.
(80*11 + 85*66 + 90*77 + 95*22 + 100*66) / (11 + 66 + 77 + 22 + 66) = (880 + 5610 + 6930 + 2090 + 6600) / 242
= 22110 / 242
= 91.4
Therefore, the mean score is 91.4 to the nearest 10th.
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
Attempt 3 out of 3
Su
1 answer