Suppose that the class has 60 students


Problems based on Normal Distribution

The time required 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 times. Answer the following questions.

a. What is the possibility of completing the exam in one hour or less?

b. What is the possibility that a student will complete the exam in more than 60 minutes but less than 75 minutes?

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

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Basic Statistics: Suppose that the class has 60 students
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