# probability density function

### noun Statistics.

a function of a continuous variable whose integral over a region gives the probability that a random variable falls within the region.

Also called frequency function. a function of a discrete variable whose sum over a discrete set gives the probability of occurrence of a specified value.

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What Is The Difference Between “Might” And “May”?May expresses likelihood while might expresses a stronger sense of doubt or a contrary-to-fact hypothetical. The difference in degree between “You may be right” and “You might be right” is slight but not insignificant: if I say you may be right about something, there is a higher degree of probability that you are right about it than if I say you might be right about something. Example: You think Einstein is the most brilliant physicist who …

## Nearby words

- prob.,
- probabilism,
- probabilistic,
- probability,
- probability curve,
- probability distribution,
- probability function,
- probability theory,
- probability wave,
- probable

## Origin of probability density function

First recorded in 1935–40

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## probability density function

### noun

statistics a function representing the relative distribution of frequency of a continuous random variable from which parameters such as its mean and variance can be derived and having the property that its integral from a to b is the probability that the variable lies in this interval. Its graph is the limiting case of a histogram as the amount of data increases and the class intervals decrease in sizeAlso called: density function Compare cumulative distribution function, frequency distribution

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