Question: Some high school students were divided into two groups, group A and group B, and given the same test. Group A consisted of 6 students

Some high school students were divided into two groups, group A and group B, and given the same test. Group A consisted of 6 students and the average score was 12 with a standard deviation of 2. Group B consisted of 8 students and the average score was 11 with a standard deviation of 3. The variability within the groups is: 1.125 0.667 1.339 1.792

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