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    What is a Probability Distribution?

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    6. Determine whether each of the distributions given below represents a probability distribution. Justify your answer.

    (a)
    x 1 2 3 4
    P(x) 1/4 1/12 1/3 1/6

    (b)
    x 3 6 8
    P(x) 0.2 2/5 0.3

    (c)
    x 20 30 40 50
    P(x) 3/10 -0.1 0.5 0.3

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    Solution Preview

    Answer: None of 3 represents a probability distribution.

    A) ...

    Solution Summary

    This solution explains how to determine if certain distributions are probability distributions.

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