View Full Version : Odds on being rolled up in stud
What are the of being rolled up in stud
13*C(4,3)/C(52,3). Odds are about 500 to 1 against
being rolled up.
Sitting Bull
<PRE>
13 * C<SUP>4</SUP><SUB>3</SUB>
_______ =
C<SUP>52</SUP><SUB>3</SUB>
</PRE>
<PRE>
13 * 4
________ =
22100
</PRE>
<PRE>
1
___ =
425
</PRE>
<PRE>
~ .00235294
</PRE>
Or a 424/1 logshot (0.235294 %)
From rpg
A perhaps easier way to calculate this is as follows. The probability of the second card being the same rank as the first is 3/51 and the odds of the third being the same as the first two is 2/50, and 3/51 * 2/50 = 1/425 or
424 to 1.
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