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    Mean and Standard Deviation

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    What is mean and standard deviation of monthly storms.

    No of storms. Probability
    0. 0.2
    1. 0.5
    2. 0.3

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    Solution Preview

    Let X denote the number of storms and P(x) be its probability mass function.
    Here the probability distribution is ...

    Solution Summary

    The determination of the mean and standard deviation of a probability distribution is discussed in the solution.