Probability of completing exam in one hour or less

Reference no: EM1311452

1) Time required to complete final examination in particular college course is generally distributed with mean of 80 minutes and standard deviation of 10 times. Reply the following questions.

a) Determine the probability of completing exam in one hour or less?

b) Compute the probability that student will complete exam in more than 60 minutes but less than 75 minutes?

c) Suppose that class has 60 students and that examination period is 90 minutes in length. How many students do you be expecting will be unable to complete the exam in the allotted time?

Reference no: EM1311452

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