a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible; "the probability that an unbiased coin will fall with the head up is 0.5"ある出来事がどれくらい起きる可能性があるかの測定蓋然率
例:The probability that an unbiased coin will fall with the head up is 0.5. 無作為で落としたコインの表が上に来る確立は、0.5である。
the quality of being probable; a probable event or the most probable event; "for a while mutiny seemed a probability"; "going by past experience there was a high probability that the visitors were lost"可能性の高いことの質見込み
例:going by past experience there was a high probability that the visitors were lost 過去の経験に従ってそこに判断することはビジターが道に迷ったという高い見込みであった