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    Statistics - Discrete Probability Distribution

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    a. Find the value of "a" in the following discrete probability distribution:

    x P(x)
    -2 a
    0 0.35
    2 0.25

    b. Determine whether or not the following is a probability distribution. Give a reason for your answers.
    x P(x)
    3 3/5
    4 2/5
    5 1/5
    6 - 1/5

    c. Determine whether or not the following is a probability distribution. Give a reason for your answer.

    x P(x)
    -1 1/4
    0 1/2
    1 1/4
    2 1/4

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    https://brainmass.com/statistics/probability/discrete-probability-distribution-example-problems-236388

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