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Poker Math That Matters

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158<br />

Answer: Probability is 2<br />

6<br />

odds against are 2:1.<br />

1<br />

which can be reduced to . The<br />

3<br />

7. What is the probability of rolling two 4s when rolling<br />

two dice?<br />

Answer: 1<br />

36<br />

Expectation Value Quiz Answers<br />

1. Someone has the four As face down on a table. You<br />

have one chance to try to pick the A♠. If you pick it<br />

correctly, they’ll pay you $3. If you do not, you pay $1.<br />

What is the EV of this wager?<br />

Answer:<br />

A♠: 1<br />

= 0.25<br />

4<br />

Other As: 3<br />

4<br />

= 0.75<br />

0.25(3) + 0.75(-1) = x<br />

0.75 - 0.75 = 0

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