The mean score for a class sitting a Physics test is 46, with stan- dard deviation of
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Question:
The mean score for a class sitting a Physics test is 46, with stan- dard deviation of 4. The mean score for the same class in a Chem- istry test is 77, with standard deviation of 9. Each set of scores is normally distributed.
Which is more likely: a student gets over 90 on the Chemistry test, or over 52 on the Physics test?
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