Question: probability Question 5: (20 marks) The time needed to complete a final examination in a particular college course is normally distributed with a mean of

probability

Question 5: (20 marks) The time needed to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes. Answer the following questions. a) What is the probability of completing the exam in 60 minutes or less? b) What is the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes? c) What is the probability that a student will complete the exam in more than 70 minutes? Hint: use the below table. Z -2 -1 -0.5 O 0.85 1.2 2.01 p(Z

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