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Probability Problem

Posted By: Gregg Cattanach
Date: Thursday, 27 August 2009, at 3:49 p.m.

In Response To: Probability Problem (poseidon)

I'm not sure what Stick's 'overcomplicating' comment means, however...

I count only 28 possible combinations, (AS+AH is the same as AH+AS).

6 contain 2 aces, 6 contain zero aces, 16 contain AK. If we know that one is an ace, then 6/22 (or 3/11) chance both are aces. There are 7 hands that contain the aces of spades; only three of them are A+A. 3/7 chance both are aces.

Misja got the same answer, but counted the number of hands twice.

I'm very curious why this result is controversial.

Messages In This Thread

• Probability Problem
  poseidon -- Thursday, 27 August 2009, at 1:26 p.m.
  • Probability Problem
    misja -- Thursday, 27 August 2009, at 1:42 p.m.
    • Probability Problem
      Stick -- Thursday, 27 August 2009, at 3:31 p.m.
    • Probability Problem
      Petter Bengtsson -- Thursday, 27 August 2009, at 3:46 p.m.
  • Probability Problem
    Gregg Cattanach -- Thursday, 27 August 2009, at 3:49 p.m.
    • Probability Problem
      Bob Koca -- Thursday, 27 August 2009, at 4:19 p.m.
    • Probability Problem
      Chuck Bower -- Thursday, 27 August 2009, at 4:46 p.m.
    • Probability Problem
      Jason Lee -- Thursday, 27 August 2009, at 7:54 p.m.
  • Probability Problem
    Neil Robins -- Thursday, 27 August 2009, at 4:14 p.m.
    • Probability Problem
      Gregg Cattanach -- Thursday, 27 August 2009, at 5:37 p.m.
      • Probability Problem
        Bob Koca -- Thursday, 27 August 2009, at 5:56 p.m.
        • Probability Problem
          Gregg Cattanach -- Thursday, 27 August 2009, at 6:07 p.m.
          • Probability Problem
            Bob Koca -- Thursday, 27 August 2009, at 7:42 p.m.
            • Probability Problem
              Gregg Cattanach -- Thursday, 27 August 2009, at 8:09 p.m.
              • Probability Problem
                joe freedman -- Thursday, 27 August 2009, at 8:26 p.m.
                • Probability Problem
                  poseidon -- Thursday, 27 August 2009, at 8:37 p.m.
                • Probability Problem
                  Jason Lee -- Thursday, 27 August 2009, at 8:47 p.m.
              • Probability Problem
                Gregg Cattanach -- Friday, 28 August 2009, at 1:58 a.m.
                • Probability Problem
                  Paul Vianna -- Friday, 28 August 2009, at 2:11 a.m.
                  • Probability Problem
                    Chuck Bower -- Friday, 28 August 2009, at 4:06 p.m.
            • monte hall called this
              garyo -- Saturday, 29 August 2009, at 7:51 a.m.
  • Probability Problem
    Chuck Bower -- Thursday, 27 August 2009, at 5:16 p.m.
  • Probability Problem
    Timothy Chow -- Thursday, 27 August 2009, at 6:03 p.m.
    • Probability Problem
      Bob Koca -- Thursday, 27 August 2009, at 6:06 p.m.
      • Probability Problem
        poseidon -- Thursday, 27 August 2009, at 6:18 p.m.
  • Probability Problem
    joe freedman -- Thursday, 27 August 2009, at 6:35 p.m.
    • Probability Problem
      joe freedman -- Thursday, 27 August 2009, at 6:39 p.m.
  • Probability Problem
    Jason Lee -- Thursday, 27 August 2009, at 7:57 p.m.
  • Probability Problem
    Bob Koca -- Friday, 28 August 2009, at 2:13 a.m.
    • Probability Problem
      poseidon -- Friday, 28 August 2009, at 10:29 a.m.