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OT: Probability of getting specific dobule in two rolls of the dice

Posted By: Michael Petch
Date: Monday, 1 August 2011, at 9:30 p.m.

In Response To: OT: Probability of getting specific dobule in two rolls of the dice (leobueno)

If you have 2 dice and roll them and you are looking for the probability of one (or both) of the values being the value you need, you can first find the chances of not seeing it. If you look at each die individually the first die would have a 5/6 chance of not having it. Multiple that by the chances of the other not having the value (5/6). (5/6)*(5/6)=25/36. The chances of seeing the value at least once is then 1-25/36=11/36 .

Now if you roll a pair of dice a second time multiply by 11/36. So we have (11/36)*(11/36) = 121/1296 = .0934 = 9.34%

Messages In This Thread

• OT: Probability of getting specific dobule in two rolls of the dice
  leobueno -- Monday, 1 August 2011, at 5:09 p.m.
  • probability tree
    Chuck Bower -- Monday, 1 August 2011, at 5:30 p.m.
  • OT: Probability of getting specific dobule in two rolls of the dice
    Daniel Murphy -- Monday, 1 August 2011, at 5:38 p.m.
  • OT: Probability of getting specific dobule in two rolls of the dice
    Bob Koca -- Monday, 1 August 2011, at 7:49 p.m.
  • OT: Probability of getting specific dobule in two rolls of the dice
    Michael Petch -- Monday, 1 August 2011, at 9:30 p.m.