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review book A advertises an average SAT gain of 40 points wtih a standard deviation of 12 points, and review book B claims an average SAT gain of 35 points with a standard deviation

review book A advertises an average SAT gain of 40 points wtih a standard deviation of 12 points, and review book B claims an average SAT gain of 35 points with a standard deviation of 15 points. assuming both assertions are correcting and assuming normal distributions, which review book is more likely to result in an SAT gain over 60 points?

Apr 03 2020 View more View Less

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