To find the mean of the scores, we first need to calculate the total sum of all scores.
75 * g + 80 * 1 + 85 * 6 + 90 * 5 + 95 * 9 = 75g + 80 + 510 + 450 + 855
= 75g + 1895
To find the mean, we then divide the total sum by the total number of students.
Total number of students = g + 1 + 6 + 5 + 9 = g + 21
Mean = (75g + 1895) / (g + 21)
Since the mean is unknown, we cannot calculate the exact value to the nearest 10th without knowing the value of 'g'.
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
75
g
80
1
85
6
90
5
95
9
1 answer
1 answer