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    Probability distribution

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    1. A Motor Company has purchased steel parts from a supplier for several years and has found that 10% of the parts must be returned because they are defective. An order of 25 parts is received. What are the mean and standard deviation of the defective parts?
    A) Mean = 3.5; standard deviation = 2.5
    B) Mean = 2.5; standard deviation = 1.5
    C) Mean = 1.5; standard deviation = 2.5
    D) Mean = 2.5; standard deviation = 3.5

    2. A Gulf Coast travel park has the following accommodations:
    Facilities
    Location Cement Pad No Cement Pad Total
    Beach Front 17 24 41
    Non Beach 6 210 216
    Total 23 234 257

    What is the probability of selecting a beach front site? (Points: 2)
    A) 0.1725
    B) 0.3465
    C) 0.1595
    D) 0.2245

    3. The listed occupations of stockholders of a regional electric utility company included 9 percent who were homemakers. If six of these stockholders are randomly selected, what is the probability that:

    No stockholders are homemakers?
    A) 0.5679
    B) 0.3600
    C) 0.5400
    D) 0.7956

    4.Given a binomial random variable with n = 15 and = 0.4, find the following probability using the binomial table. P (6 < x < 10)
    A) 0.0338
    B) 0.1181
    C) 0.0947
    D) 0.3564

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    https://brainmass.com/statistics/probability/probability-distribution-229067

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    Solution Summary

    The solution provides step by step method for the calculation of probability from binomial distribution. . Formula for the calculation and Interpretations of the results are also included.

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