To find the mean score for Class 1:
Mean = (75 + 80 + 84 + 79 + 92 + 86) / 6
Mean = 496 / 6
Mean = 82.67
To find the mean score for Class 2:
Mean = (83 + 85 + 91 + 93 + 72 + 85 + 88 + 86 + 86 + 90 + 76 + 80 + 82 + 89) / 14
Mean = 1096 / 14
Mean = 78.29
Based on the mean scores, Class 1 generally performed better on the math test with a mean score of 82.67 compared to Class 2's mean score of 78.29.
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
Class 2:
83
85
91
93
72
85
88
86 86 90
76
80 82 89
Find the mean score of each sample. Based on the mean, which class generally performed better on the math test?
(2 points)
The mean score for Class 1 is
The mean score for Class 2 is
math test.
Based on the mean, Class generally performed better on the
1 answer