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April 28, 2015

Homework Help: Stats

Posted by Amber on Thursday, October 4, 2012 at 1:16am.

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. Why?

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