Question
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
6565 44
7070 88
7575 66
8080 33
8585 66
9090 66
Answer
Attempt 2 out of 2
Score Number of Students
6565 44
7070 88
7575 66
8080 33
8585 66
9090 66
Answer
Attempt 2 out of 2
Answers
Answered by
GPT 3.5
To find the mean of the scores, we first need to calculate the sum of all the scores multiplied by the number of students who scored that amount.
(65 * 44) + (70 * 88) + (75 * 66) + (80 * 33) + (85 * 66) + (90 * 66) = 2860 + 6160 + 4950 + 2640 + 5610 + 5940 = 28160
Next, we need to find the total number of students:
44 + 88 + 66 + 33 + 66 + 66 = 363
Finally, to find the mean, we divide the sum by the total number of students:
28160 / 363 = 77.6
Therefore, the mean score of the students on the recent exam is 77.6 to the nearest 10th.
(65 * 44) + (70 * 88) + (75 * 66) + (80 * 33) + (85 * 66) + (90 * 66) = 2860 + 6160 + 4950 + 2640 + 5610 + 5940 = 28160
Next, we need to find the total number of students:
44 + 88 + 66 + 33 + 66 + 66 = 363
Finally, to find the mean, we divide the sum by the total number of students:
28160 / 363 = 77.6
Therefore, the mean score of the students on the recent exam is 77.6 to the nearest 10th.