Poker probability The "nCr" function on most scientific calculators can be used to calculate hand frequencies; entering with and , for example, yields formula_2 as above. The royal flush is a case of the straight flush. It can be formed 4 ways (one for each suit), giving it a probability of 0.000154% and odds of 649,739 : 1. When ace-low straights and ace-low straight flushes are not counted, the probabilities of each are reduced: straights and straight flushes each become 9/10 as common as they otherwise would be. The 4 missed straight flushes become flushes and the 1,020 missed straights become no
Strip poker can play hands with lower probabilities than they would in a cash game. For example, in a cash game, because it occurs only 8% of the time, an inside straight draw might be a poor hand to play, hence the saying "Never draw to an inside straight." In strip poker, when the potential loss is only one item of clothing whether you fold or call, an 8% chance to win the hand is better than the alternative. While it has been suggested that strip poker originated in New Orleans in the United States around the same time as original poker