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Eraserhead1 (talk | contribs) Moved Presidential Management Fellows Program from Pmf redirect to here and set Pmf to redirect to this page. |
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'''''Pmf''' redirects here; Pmf can also mean the [[Presidential Management Fellows Program]].
In [[probability theory]], a '''probability mass function''' (abbreviated '''pmf''') gives the probability that a [[discrete random variable|discrete]] [[random variable]] is exactly equal to some value. A probability mass function differs from a [[probability density function]] in that the values of the latter, defined only for [[continuous random variable]]s, are not probabilities; rather, its integral over a set of possible values of the random variable is a probability.
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