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Corey scores X = 70 on his first exam, for which the entire class scored a mean of u = 78 and standard deviation of

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Corey scores X = 70 on his first exam, for which the entire class scored a mean of u = 78 and standard deviation of o = 6. The instructor wants to standardize the distribution of exam scores to have u = 100 and o = 15. What will Corey's grade on the exam be in the new distribution

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