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    Discrete probability distribution: mean, standard deviation

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    Using historical records, the personnel manager of a plant has determined the probability distribution of X, the number of employees absent per day.

    It is:

    x 0 1 2 3 4 5 6 7
    P(x) 0.005 0.025 0.31 0.34 0.22 0.08 0.019 0.001

    a. Find the following probabilities:

    P(2 ≤ X ≤ 5)

    P(X >5)

    P(X < 4)

    b. Calculate the mean of the population

    c. Calculate the standard deviation of the population

    © BrainMass Inc. brainmass.com May 20, 2020, 4:47 pm ad1c9bdddf
    https://brainmass.com/statistics/probability/discrete-probability-distribution-mean-standard-deviation-192167

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    Solution Summary

    This solution uses an Excel sheet to find the mean, standard deviation, and probabilities from a discrete probability distribution.

    $2.19

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