Results 1 to 4 of 4

Math Help - Craps Probability

  1. #1
    Newbie iEricKim's Avatar
    Joined
    Jun 2008
    From
    Usa
    Posts
    14

    Craps Probability

    What are the outcome probabilities for craps?
    (Win on the first roll? (roll 7 or 11) )
    (Lose on the first roll? (roll 2, 3, or 12 ) )
    (Win after 'x' amount of rolls?)
    (Lose after 'x' amount of rolls?)
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,607
    Thanks
    1574
    Awards
    1
    Quote Originally Posted by iEricKim View Post
    What are the outcome probabilities for craps?
    (Win on the first roll? (roll 7 or 11) )
    (Lose on the first roll? (roll 2, 3, or 12 ) )
    (Win after 'x' amount of rolls?)
    (Lose after 'x' amount of rolls?)
    Have you listed the 36 pairs that makeup the outcome space?
    Then count and divide by 36.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie iEricKim's Avatar
    Joined
    Jun 2008
    From
    Usa
    Posts
    14
    Quote Originally Posted by Plato View Post
    Have you listed the 36 pairs that makeup the outcome space?
    Then count and divide by 36.
    Well, I got the ones winning and losing on the first roll, but I'm not sure how to find the ones after 'x' amount of rolls.


    Win = 8/36
    Lose = 4/36
    Continue = 24/36
    That's what I got. :P But I dunno how to find the probability of winning or losing after getting a "continue."
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Super Member
    Joined
    Mar 2008
    Posts
    934
    Thanks
    33
    Awards
    1
    Quote Originally Posted by iEricKim View Post
    Well, I got the ones winning and losing on the first roll, but I'm not sure how to find the ones after 'x' amount of rolls.


    Win = 8/36
    Lose = 4/36
    Continue = 24/36
    That's what I got. :P But I dunno how to find the probability of winning or losing after getting a "continue."
    You can find this problem discussed here: Craps -- from Wolfram MathWorld

    (However, the discussion is not in terms of the number of rolls required but in terms of the probability of winning if, for example, the first roll is a 4.)
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 10
    Last Post: January 21st 2011, 11:47 AM
  2. Probability of winning a game of craps
    Posted in the Statistics Forum
    Replies: 1
    Last Post: September 13th 2010, 09:57 AM
  3. Replies: 3
    Last Post: May 29th 2010, 07:29 AM
  4. Replies: 1
    Last Post: February 18th 2010, 01:54 AM
  5. Replies: 3
    Last Post: December 15th 2009, 06:30 AM

Search Tags


/mathhelpforum @mathhelpforum