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The time needed to complete the final examination in a particular college course is normally distributed with a mean of80 minutesand a standard deviation of10

The time needed to complete the final examination in a particular college course is normally distributed with a mean of80 minutesand a standard deviation of10 minutes.Answer the following questions.

A class of 90 with examination period of 90 minutes

How many students expect will be unable to complete the exam in allotted time?

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