Frequentist probability or
frequentism is a standard
interpretation of probability; it defines an event's
probability as the
limit of its relative
frequency in a large number of trials. This interpretation supports the statistical needs of experimental scientists and pollsters; probabilities can be found (in principle) by a repeatable objective process (and are thus ideally devoid of opinion). It does not support all needs; Gamblers typically require estimates of the odds without experiments.