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Assume that a set of test scores is normally distributed with a mean of 480 and a standard deviation of 20. What percentage of scores lies between 470 and 526?
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Assume that a set of test scores is normally distributed with a mean of 480 and a standard deviation of 20. What percentage of scores lies between 470 and 526?

User Amin Sh
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woah woah woah this is to much i just graduated
User Augusto Destrero
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