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    The time needed to complete the final examination of MGSC 301 is normally distributed with a mean of 120 minutes and a standard deviation of 12 minutes.

    a. What is the probability that a student will finish the examination in two hours or more?
    b. What is the probability that a student will finish the examination in more than 100 minutes but less than 150 minutes?
    c. What is the probability that a student will finish the examination in more than 140 minutes?

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    https://brainmass.com/statistics/probability/normal-distribution-254947

    Solution Preview

    The time needed to complete the final examination of MGSC 301 is normally distributed with a mean of 120 minutes and a standard deviation of 12 minutes.

    a) What is the probability that a student will finish the examination in two hours or more?

    Mean=2 hours = 120 minutes
    Probability of exceeding mean = 50% as the normal distribution is symmetrical

    Mean=M = 120 minutes
    Standard deviation =s= 12 minutes
    x= 120 minutes ...

    Solution Summary

    Calculates probability using Normal Distribution.

    $2.49

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