The frequency of a value or category that results from some model. When a distribution of a specified type is matched to a set of observed frequencies, the value corresponding to a particular observed frequency is the fitted frequency and the set of fitted frequencies is the fitted distribution. Usually the observed and fitted frequencies will be compared using a goodness-of-fit test. The parameters of the fitted distributions will often have been estimated using the method of maximum likelihood. See also expected frequency.
Subjects: Probability and Statistics.