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Students in a STAT 18 class took an exam, and the average score was an 86, with a standard deviation of 4. The scores are

Students in a STAT 18 class took an exam, and the average score was an 86, with a standard deviation of 4. The scores are normally distributed.

If someone has a z-score of 1, what percent of thedistributionfalls below their score?

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