for example: you have 5h 7c in your pocket hand, then Ks, 6s, 8d, 2c on the flop. Either a "9" or a "4" is required to complete the straight. There are 4 "9's" in the deck and there are 4 "4's" in the deck, add them together, which makes 8, you require one of them 8 cards to make your straight so therefore there is "8 Outs".
The equation:
8 (outs) * 2 + 1 = 17
So there is 17% chance of making a straight.
I understand that the "+1" comes from the river required, but where does that *2 come from? What are you multiplying? Please explain.
2007-02-27 05:01:45 · 6 answers · asked by Anonymous in Games & Recreation ➔ Gambling
Scruffy's answer covers the math part of it well, but what I want to know is... What the heck are you doing playing 5h 7c? Fold that garbage. :)
2007-02-27 05:14:02 · answer #1 · answered by David D 4 · 0⤊ 1⤋
You are using an oversimplified rule that has no mathematical basis for determining your percentage. Although this rule can be used as a rough estimate of your percentages, there is no mathematical explanation for it.
Here is the exact percentage.
You have 8 outs to win (assuming a 5 or a 7 won't win it for you)
Therefore, you have 8 out of a possible 46 cards (cards that you do not know) to win.
Hence, it's simply 8/46 or 17.39% of winning.
Don't forget, however, that a spade will put a flush draw out on the board, so those 2 outs might be a little tainted, and this would obviously drive your percentages downward a little bit.
2007-02-28 14:30:44 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The formula is incorrect. It's an approximation of the real formula.
Out of 52 cards, 6 are gone leaving 46.
The odds of one of the 8 outs coming out on the river is 8/46 = approx. 17%
The reason it works is because there are approximately 50 cards left, so to get your answer out of 100, you multiply by 2. The +1 makes up for the fact there are actually less than 50.
2007-02-27 05:05:44 · answer #3 · answered by scruffy 5 · 2⤊ 0⤋
Its easy, just times your outs times 4 on the flop and times 2 on the river. So lets say you are on a flush draw then you would times your out (9) times 4, that gives you 36% to hit your flush. And if you missed your flush on the turn you times your outs (9) times 2, and that gives you 18%.
2007-03-04 18:16:45 · answer #4 · answered by sincity usa 7 · 0⤊ 0⤋
You can log on my site and click on "math in poker"
Take care
2007-02-27 05:07:05 · answer #5 · answered by pokercoach 5 · 0⤊ 0⤋
check here http://amarilloslim.org/default.aspx or rather here http://amarilloslim.org/asp10.aspx
2007-02-28 17:31:01 · answer #6 · answered by trigerjoe001 2 · 0⤊ 0⤋