To find the mean of the scores, you need to multiply each score by the number of students who received that score, then add up all the products and divide by the total number of students.
(60*9) + (65*8) + (70*4) + (75*1) + (80*6) + (85*3) + (90*6) = 540 + 520 + 280 + 75 + 480 + 255 + 540 = 2690
Adding up the total number of students:
9 + 8 + 4 + 1 + 6 + 3 + 6 = 37
Therefore, the mean of the scores is 2690 / 37 = 72.7 to the nearest 10th.
So, the mean score is 72.7.
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
60 9
65 8
70 4
75 1
80 6
85 3
90 6
1 answer