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Solution) On her first test in Algebra Mary earned a score of 75, and she made an 85 on her first psychology t

Question: On her first test in Algebra Mary earned a score of 75, and she made an 85 on her first psychology test. If the average score on the algebra test was a 68, with s = 7, and the average on the psychology test was 91, with s= 6, is Mary doing better in psychology or algebra?

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