Long-run probability

Frequentist probability or frequentism is an interpretation of probability; it defines an event's probability (the long-run probability) as the limit of its relative frequency in infinitely many trials. Probabilities can be found (in principle) by a repeatable objective process, as in repeated sampling from the same population, and are thus ideally devoid of subjectivity. The continued use of frequentist methods in scientific inference, however, has been called into question.