Mathematics, 05.08.2019 16:10, mbarron279542

The time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minus. using the 68-95-99.7 rule, what percentage of students will complete the exam in under an hour?

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The time to complete a standardized exam is approximately normal with a mean of 70 minutes and a sta...