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Raul received a score of 70

style="color:rgb(0,0,0);background-color:rgb(255,255,255);"> on a history test for which the class mean was 70 with a standard deviation of 6. He received a score of 71 on a biology test for which the class mean was 70 with standard deviation 3. On which test did he do better relative to the rest of the class? 

biology test

history test


the same

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