Santina R.

asked • 05/05/20

How do i solve this question?

The time to complete a standardized exam in the BYU-Idaho Testing Center is approximately normal with a mean of 70 minutes and a standard deviation of 10 minutes. Using the 68-95-99.7 rule, approximately what percentage of students will complete the exam in under fifty minutes?

1 Expert Answer

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Meghan P. answered • 05/05/20

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