Paul received a score of 80 on a history test for which the, Ask an Expert

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Paul received a score of 80 on a history test for which the class mean was 70 with a standard deviation of 10. He received a score of 75 on a biology test for which the class mean was 70 and the standard deviation was 2.5. On which test did he do better relative to the rest of the class? Please explain in a sentence or two your reasons for your choice.

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