Probability distribution function
A probability distribution function is some function that may be used to define a particular probability distribution. Depending upon which text is consulted, the term may refer to:
- a cumulative distribution function,
- a probability mass function, and/or
- a probability density function.
The similar term probability function may mean any of the above and, in addition,
- a probability measure function, as in a probability space, where the domain of the function is the set of events.
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Roughly, PROBABILITY is how frequently we expect DIFFERENT outcomes to occur if we repeat an EXPERIMENT or an ACT over and over