(08.04 mc) the grades on the last art exam had a mean of 75%. assume the population of grades on art exams is known to be distributed normally, with a standard deviation of 7%. using the empirical rule, approximately what percent of students earn a score between 75% and 82%? a) 68% b) 16% c) 32% d) 34%
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Category: chemistry |
Author: Mona Eva
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