Suppose the amount of time it takes a student to complete a multiple-choice exam with 50 questions follows a normal distribution with a mean of 60 minutes and a standard deviation of 10 minutes. If a student is randomly selected, what is the probability that they take more than 70 minutes to complete the exam
Suppose the amount of time it takes a student to complete a multiple-choice exam with 50 questions follows a normal distribution with a mean of 60 minutes and a standard deviation of 10 minutes. If a student is randomly selected, what is the probability that they take more than 70 minutes to complete the exam
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose the amount of time it takes a student to complete a multiple-choice exam with 50 questions follows a normal distribution with a mean of 60 minutes and a standard deviation of 10 minutes. If a student is randomly selected, what is the probability that they take more than 70 minutes to complete the exam? If a group of 25 students is randomly selected, what is the probability that their average exam time is between 58 and 62 minutes?
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