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You may need to use the appropriate table ((Standard Normal Table)) to answer this question. 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. What is the probability of completing the exam in one hour or less? answer to four decimal places.) (Round yo

You may need to use the appropriate table ((Standard Normal Table)) to answer this question. 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. What is the probability of completing the exam in one hour or less? answer to four decimal places.) (Round yo

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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You may need to use the appropriate table ((Standard Normal Table)) to answer this question. 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. What is the probability of completing the exam in one hour or less? (Round your answer to four decimal places.) What is the probability that a student will complete the exam in more than 60 minutes but less than 65 minutes? (Round your answer to three decimal places.) Assume that the class has 50 students and that the examination period is 90 minutes in length. How many students do you expect will be unable to complete the exam in the allotted time? (Round your answer up to the nearest integer.)
Transcribed Image Text:You may need to use the appropriate table ((Standard Normal Table)) to answer this question. 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. What is the probability of completing the exam in one hour or less? (Round your answer to four decimal places.) What is the probability that a student will complete the exam in more than 60 minutes but less than 65 minutes? (Round your answer to three decimal places.) Assume that the class has 50 students and that the examination period is 90 minutes in length. How many students do you expect will be unable to complete the exam in the allotted time? (Round your answer up to the nearest integer.)
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