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
Domination (poker) Domination (poker) Poker hand A is said to dominate poker hand B if poker hand B has three or fewer outs (cards to catch) that would improve it enough to win. Informally, domination is sometimes used to refer to any situation where one hand is highly likely to beat another. The term drawing dead is used to denote a domination situation with zero outs. In hold'em poker variations, domination usually refers to one of five situations involving the hole cards: This is considered domination—despite the having six outs—because if they both hit the flush the will win. The following table