The table displays the scores of students on a recent exam. Find the mean of the scores to the nearest 10th.
Score: 60, 65, 70, 75, 80, 85, 80, 95
Number of students: 9, 5, 1, 6, 2, 3, 1, 4,
To find the mean, we need to multiply each score by the number of students who received that score, add up those products, and then divide by the total number of students.
(60x9) + (65x5) + (70x1) + (75x6) + (80x2) + (85x3) + (80x1) + (95x4) = 3865
Total number of students = 31
Mean = 3865/31 = 124.6774194
Rounding to the nearest 10th, the mean score is 124.7.
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To find the mean (average) of the scores, we need to calculate the sum of all the scores and divide it by the total number of students.
First, let's calculate the sum of the scores:
60 + 65 + 70 + 75 + 80 + 85 + 80 + 95 = 590
Next, let's calculate the total number of students:
9 + 5 + 1 + 6 + 2 + 3 + 1 + 4 = 31
Now, we can find the mean:
Mean = Sum of scores / Total number of students
Mean = 590 / 31 = 19.03 (rounded to the nearest 10th)
The mean of the scores is approximately 19.0.
To find the mean of the scores, you need to add up all the scores and then divide the sum by the total number of students.
Let's start by calculating the sum of the scores:
60 + 65 + 70 + 75 + 80 + 85 + 80 + 95 = 590
Next, count the total number of students:
9 + 5 + 1 + 6 + 2 + 3 + 1 + 4 = 31
Now, divide the sum of the scores (590) by the total number of students (31):
590 / 31 ≈ 19.032
Rounding the mean to the nearest 10th, we get:
Mean ≈ 19.0
Therefore, the mean score of the students on the recent exam is approximately 19.0.