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Practical Poker Math

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5. Odds in Omaha Hi-Lo<br />

the low cards in the hole. Of the 45 unseen cards there are 16<br />

that will make the Low and 23 that can combine with one of<br />

those 16 to make the Low without counterfeiting one of the<br />

low cards in the hole.<br />

16 * 23 = 368 is the number of 2-card combinations, one<br />

card of which will make the Low.<br />

Comb(16, 2) is the number of 2-card combinations that<br />

contain 2 cards that will make the Low, including pairs:<br />

(16 * 15) = 120<br />

(1 * 2)<br />

120 2-card combinations will contain 2 low cards and still<br />

complete the Low without counterfeiting either of the low<br />

cards in the hole.<br />

368 + 120 = 488 possible 2-card combinations WILL make<br />

the Low:<br />

Total Possibilities = 990<br />

– WILLs = 488<br />

WILLNOTs = 502<br />

Odds of a Low with 2 Cards to Come<br />

WILLNOTs : WILLs<br />

502 : 488<br />

Reduce<br />

502 / 488 : 488 / 488<br />

1.03 : 1<br />

WILLs<br />

* 100 = Probability as %<br />

Total Possibilities<br />

488 * 100 = 49%<br />

990<br />

204

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