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
Video poker the flush attack flush represents one of the higher overlays of video poker. These machines, once common, are now relatively rare. "Bonus Poker" is a video poker game based on Jacks or Better, but Bonus Poker offers a higher payout percentage for four of a kind. The full-pay version of this game returns 99.2%. (3) The game has multiple versions featuring different bonus payouts based on the ranking of the four of a kind. "Double Bonus" video poker is a variation of Jacks or Better with a bonus payout for four aces. This variation offers up to a theoretical return