Results 1 to 4 of 4

Math Help - Discrete Probability - error with question?

  1. #1
    Junior Member
    Joined
    Jan 2010
    Posts
    52

    Discrete Probability - error with question?

    1. The problem statement, all variables and given/known data
    On a long train journey, a statistician is invited by a gambler to play a dice game. The game uses 2 unbiased ordinary dice which the statistician is to throw. If the total score is 12, the statistician is paid 3 dollars by the gambler. However,if both or either dice show a '1', the statistician pays the gambler 2 dollars.

    Let X= amount paid to the statistician by the gambler after the dice are thrown once.

    Determine the probability that X=6,X=3 and X=-2.


    I have one question...how do we determine the probability that X=6 since the question states that the statistician is paid 3 dollars by the gambler if the total score is 12 and X is the amount paid to the statistician after the dice are thrown once?

    There's an error with the question isn't it? I need a second opinion on this. Thank you.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor matheagle's Avatar
    Joined
    Feb 2009
    Posts
    2,763
    Thanks
    5
    many questions.....
    1) what is "total score" is that the sum of two tosses, by both players?
    2) do you repeatedly play this game? then $3-$2 is one dollar, so you can win $6 eventually

    maybe the 6 is a zero, then AFTER one play
    P(X=3)=P(X=-2)=1/36 and P(X=0)=17/18
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Jan 2010
    Posts
    52
    How do you find the probability of X=6?
    And the question states that X is the amount paid to the statistician in after the dice are thrown....once?
    The question also states that the dice are to be thrown by the statistician not both players.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor matheagle's Avatar
    Joined
    Feb 2009
    Posts
    2,763
    Thanks
    5
    it doesn't matter who tosses the dice
    fine P(X=6)=0
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Error in probability question?
    Posted in the Advanced Statistics Forum
    Replies: 5
    Last Post: October 24th 2011, 04:03 AM
  2. Replies: 0
    Last Post: April 19th 2011, 05:48 AM
  3. Replies: 0
    Last Post: November 4th 2010, 05:22 PM
  4. Replies: 0
    Last Post: March 17th 2010, 12:49 PM
  5. Discrete Probability Question - Monte Carlo Algorithm
    Posted in the Discrete Math Forum
    Replies: 0
    Last Post: January 18th 2010, 12:51 PM

Search Tags


/mathhelpforum @mathhelpforum