Mathematics, 15.10.2019 14:50, jilliand2030

The grades on the last history exam had a mean of 80%. assume the population of grades on history exams is known to be normally distributed with a standard deviation of 5. what percent of students earn a score between 70% and 80%?

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The grades on the last history exam had a mean of 80%. assume the population of grades on history ex...