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02-05-2024
Mathematics

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Boubacar earned a score of 78 on Exam A that had a mean of 72 and a
standard deviation of 20. He is about to take Exam B that has a mean of
650 and a standard deviation of 40. How well must Boubacar score on
Exam B in order to do equivalently well as he did on Exam A? Assume
that scores on each exam are normally distributed.
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