A statistics professor knows that the time taken to mark a final exam is normally distributed, with a mean of 40 minutes and a standard deviation of 5.8 minutes. b) The professor has 7 hours to mark the last 10 exams. What is the probability he will finish in time? Hint: Determine the average time per exam he will have to mark
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Step 1
To find the average time per exam, we divide the total time available by the number of exams. Average time per exam = Total time available / Number of exams Average time per exam = 7 hours * 60 minutes / 10 exams Average time per exam = 420 minutes / 10 Show more…
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