To find the mean (average), add up all the scores in each class and divide by the number of scores.
For Class 1:
Mean score = (75 + 80 + 84 + 79 + 92 + 86 + 88 + 86 + 86 + 90) / 10 = 85.6
For Class 2:
Mean score = (83 + 85 + 91 + 93 + 72 + 85 + 76 + 80 + 82 + 89) / 10 = 83.6
Based on the mean score, Class 1 generally performed better on the math test with a mean score of 85.6 compared to Class 2's mean score of 83.6.
Here are the math test scores of 10 randomly selected students from Class 1 and Class 2.
Class 1: 75 80 84 79 92 86 88 86 86 90
Class 2: 83 85 91 93 72 85 76 80 82 89
Find the mean score of each sample. Based on the mean, which class generally performed better on the math test?
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