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
Draw poker pot with less than three of a kind. In the event no one makes the winning requirement, the pot is moved on to the next hand. The strongest possible hand in this game is five aces which is achieved if the player obtains the four aces plus the joker (joker counts as an ace if there's neither a straight nor a flush to complete). This can result in some enormous pots, and is where the term 'Jackpot' comes from. The game is named after the city of Gardena, California, where this game was especially popular from the 1930s to 1970s