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Mathematics, 31.01.2020 13:03 hmontalvo22
The grades on the last math exam had a mean of 72%. assume the population of grades on math exams is known to be distributed normally, with a standard deviation of 5%. approximately what percent of students earn a score between 72% and 87%? 49.9% 1% 50% 47.7%
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The grades on the last math exam had a mean of 72%. assume the population of grades on math exams is...
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