Probability mass function: Difference between revisions

Revision as of 00:55, 3 December 2003

Revision as of 00:56, 3 December 2003

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Probability mass functions may also be defined for any discrete random variable, including [[constant random variable|constant]], [[Binomial distribution|binomial]] (including [[Bernoulli distribution|Bernoulli]]), [[negative binomial distribution|negative binomial]], [[Poisson distribution|Poisson]], [[geometric distribution|geometric]] and [[hypergeometric distribution|hypergeometric]] random variables.

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A probability function where the ___domain is a discrete random variable, and the range is the probability of that particular random variable occurring. For example, flip 3 coins and let X represent the number of heads. X = {0, 1, 2, 3}. The probability that X = x is (3Cx)(0.5^3)

Compare with: [[probability density function]].

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