Question

lilly made a 75 on her history test and an3 on her math test. the mean grade on the history test was 72 with a standard deviation of 5. the average grade on the math test was 81 with a standard deviation of 4. which test did lilly do better?
bobpursley
Hmmm. She made 3 on her math test, and the average was 81....

This is pretty easy to choose history is her best subject.

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