Mathematics, 04.12.2020 23:50 barnhill4755

6. (09.05 MC)
The grades on the last history exam had a mean of 80%. Assume the population of grades on history exams is known to be distributed normally, with a standard deviation of 5%. Approximately what percent of students earn a score between 70% and 80%? (6 points)

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6. (09.05 MC)
The grades on the last history exam had a mean of 80%. Assume the population of...

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6. (09.05 MC) The grades on the last history exam had a mean of 80%. Assume the population of grades on history exams is known to be distributed normally, with a standard deviation of 5%. Approximately what percent of students earn a score between 70% and 80%? (6 points)

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Another question on Mathematics

6. (09.05 MC)
The grades on the last history exam had a mean of 80%. Assume the population of grades on history exams is known to be distributed normally, with a standard deviation of 5%. Approximately what percent of students earn a score between 70% and 80%? (6 points)