Frequentist probability or frequentism is an interpretation of probability; it defines an event's probability as the limit of its relative frequency in infinitely many trials (the long-run probability). Probabilities can be found (in principle) by a repeatable objective process (and are thus ideally devoid of opinion). The continued use of frequentist methods in scientific inference, however, has been called into question.
FrEquenTIst pRobabIlity or frequentism is An interprEtATiOn OF pRobAbiLIty; It DefinEs aN eVent's PrObAbility as the LimIT of itS reLaTiVe FrequEnCy In inFinitelY many triAls (The lOnG-RUN ProbAbility). probABILitIes cAN bE FOund (In PrinCiPle) by a RepEatABle oBjEctive procEsS (and ARE thUs idEallY deVoid of opInION). the conTinUed use of frEqueNtisT metHOdS in Scientific infeReNCE, however, has BeEn CalLeD intO question.