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Probability -- I Might Have Once Known How to Calculate This

Posted By: bob koca
Date: Sunday, 24 August 2008, at 7:44 p.m.

In Response To: Probability -- I Might Have Once Known How to Calculate This (Bill Riles)

One general comment first. You would have been saying the similar thing had it been a lot of doubles in general or a different specific double. Also you would have been saying something with any large number of 55s. Perhaps better is finding probability of at least 8 55's.

P(exactly 8 55's in 20 rolls) is a binomial distribution with 20 trials and probability of success 1/36

P(X = 8) = 20!/ (8!12!) * (1/36)^8 * (35/36)^12 = .000000032

Messages In This Thread

• Probability -- I Might Have Once Known How to Calculate This
  Bill Riles -- Sunday, 24 August 2008, at 6:47 p.m.
  • Probability -- I Might Have Once Known How to Calculate This
    Tom Keith -- Sunday, 24 August 2008, at 7:36 p.m.
  • Probability -- I Might Have Once Known How to Calculate This
    bob koca -- Sunday, 24 August 2008, at 7:44 p.m.
    • Probability -- I Might Have Once Known How to Calculate This
      Bill Riles -- Sunday, 24 August 2008, at 7:52 p.m.
    • Probability -- I Might Have Once Known How to Calculate This
      happyjuggler0 -- Sunday, 24 August 2008, at 8:47 p.m.
      • Probability -- I Might Have Once Known How to Calculate This
        Marty Storer -- Monday, 25 August 2008, at 8:20 p.m.
        • Probability -- I Might Have Once Known How to Calculate This
          Bob Koca -- Monday, 25 August 2008, at 8:37 p.m.
          • Probability -- I Might Have Once Known How to Calculate This
            Marty Storer -- Monday, 25 August 2008, at 8:45 p.m.
          • Probability -- I Might Have Once Known How to Calculate This
            Bob Koca -- Monday, 25 August 2008, at 9:10 p.m.
        • Probability -- I Might Have Once Known How to Calculate This
          Tom Keith -- Monday, 25 August 2008, at 8:45 p.m.
          • Probability -- I Might Have Once Known How to Calculate This
            Marty Storer -- Monday, 25 August 2008, at 8:48 p.m.
          • Probability -- I Might Have Once Known How to Calculate This
            Bob Koca -- Monday, 25 August 2008, at 9:11 p.m.
          • Probability -- I Might Have Once Known How to Calculate This
            happyjuggler0 -- Tuesday, 26 August 2008, at 5:34 a.m.
    • Probability -- I Might Have Once Known How to Calculate This
      Barry Silliman -- Sunday, 24 August 2008, at 11:28 p.m.
      • Probability -- I Might Have Once Known How to Calculate This
        Bill Riles -- Sunday, 24 August 2008, at 11:47 p.m.
        • Probability -- I Might Have Once Known How to Calculate This
          Marty Storer -- Monday, 25 August 2008, at 8:06 p.m.
          • Probability -- I Might Have Once Known How to Calculate This
            Bob Koca -- Monday, 25 August 2008, at 8:10 p.m.
            • Probability -- I Might Have Once Known How to Calculate This
              Marty Storer -- Monday, 25 August 2008, at 8:22 p.m.
      • Probability -- I Might Have Once Known How to Calculate This
        Chuck Bower -- Monday, 25 August 2008, at 4:03 p.m.
        • Probability -- I Might Have Once Known How to Calculate This
          Marty Storer -- Monday, 25 August 2008, at 8:00 p.m.
    • Probability -- I Might Have Once Known How to Calculate This
      garyo -- Monday, 25 August 2008, at 6:10 a.m.
  • Probability -- I Might Have Once Known How to Calculate This
    neilkaz -- Sunday, 24 August 2008, at 9:19 p.m.
    • Probability -- I Might Have Once Known How to Calculate This -- LMAO
      Bill Riles -- Sunday, 24 August 2008, at 10:00 p.m.
    • Probability -- I Might Have Once Known How to Calculate This
      Marty Storer -- Monday, 25 August 2008, at 7:54 p.m.
      • Probability -- I Might Have Once Known How to Calculate This
        Barry Silliman -- Monday, 25 August 2008, at 9:14 p.m.
  • Probability -- I Might Have Once Known How to Calculate This
    pfeifrot -- Sunday, 24 August 2008, at 9:29 p.m.