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Mathematics, 12.12.2020 16:40 hahHcjckk

PLEASE HELP ME The grades on the last math exam had a mean of 72%. Assume the population of grades on math crams is known to be distributed normally, with a standard delation of 5%. Using the
empirical rule, approximately what percent of students eamed a score between 72% and 87%?

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PLEASE HELP ME The grades on the last math exam had a mean of 72%. Assume the population of grades...

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