Probability Distributions

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Last updated 8:09 PM on 9/27/26
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4 Terms

1
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probability distribution

function that describes the relationship between possible values of random variable and the probability of their occurence

2
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discrete probability distribution

a table, graph, or formula used to specify all possible values of a discrete random variable along with their respective probabilities

3
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P(X=x)

the probability of a discrete random variable, X, to assume a value, x

4
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discrete probability properties

  • 0 less than or equal to P(X=x) less than or equal to 1

  • capital sigma P(X=x) = 1