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***PLEASE SHOW HOW TO SOLVE IN EXCEL*** NOT HANDWRITTEN 6) The time needed to complete a...

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Basic Math

***PLEASE SHOW HOW TO SOLVE IN EXCEL*** NOT HANDWRITTEN

6) The time needed to complete a final examination in aparticular college course is normally distributed with a mean of 90minutes and a standard deviation of 15 minutes. Answer thefollowing questions.

a. What is the probability of completing the exam in one hour orless?

b. What is the probability that a student will complete the examin more than 60 minutes but less than 105 minutes?

c. Assume that the class has 60 students and that theexamination period is 120 minutes in length. How many students doyou expect will be unable to complete the exam in the allottedtime?

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