Definition:Probability Mass Function/Also known as
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Probability Mass Function: Also known as
A probability mass function is often seen abbreviated p.m.f., pmf or PMF.
Some sources refer to it just as a mass function, or a probability function.
It is also known as a frequency function, which is also used for probability density function.
When used in the context of a set of raw data, it can also be called a relative frequency function.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): frequency function
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): frequency function
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): probability mass function