To find the mean of the scores, we first need to calculate the total score of all students combined.
Total score = (80 * 11) + (85 * 66) + (90 * 77) + (95 * 22) + (100 * 66)
Total score = 880 + 5610 + 6930 + 2090 + 6600
Total score = 21310
Next, we need to calculate the total number of students.
Total number of students = 11 + 66 + 77 + 22 + 66
Total number of students = 242
Now, we can calculate the mean by dividing the total score by the total number of students.
Mean = Total score / Total number of students
Mean = 21310 / 242
Mean ≈ 88.2
Therefore, the mean score of the students on the recent exam is approximately 88.2 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 1 out of 3
1 answer