- the correspondence of a set of frequencies with the set of categories, intervals, or values into which a population is classified.
- statistics the function of the distribution of a sample corresponding to the probability density function of the underlying population and tending to it as the sample size increases, the set of relative frequencies of sample points falling within given intervals of the range of the random variable
- A range of conditions, often represented in graph form, in which each item is paired with the number of observed events or measurements meeting those conditions. For example, a list of price ranges paired with the number of cars available in each price range is a frequency distribution. Frequency distributions are commonly used in statistical analysis.