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Math Help - Probability Help

  1. #1
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    Question Probability Help

    Question: Suppose we roll a red die and a green die. What is the probability the number on the red die is Larger (>) than the number on the green die.


    Not to sure what to do?????
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by mathlg View Post
    Question: Suppose we roll a red die and a green die. What is the probability the number on the red die is Larger (>) than the number on the green die.


    Not to sure what to do?????
    First the probability that they show the same is 1/6 (there are 6 equally likely
    way that they can be equal out of a total of 36 equally likely outcomes).

    So the probability that they are not the same is 5/6. Also symmetry
    guarantees that the probability that red die shows a larger number than the
    green is the same as vice versa, and these must sum to 5/6.

    Hence the probability that the red shows larger than the green is 5/12.

    RonL
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  3. #3
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    oh ok thanks
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