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ALGEBRA

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Dice is a popular game in gambling casinos. Two dice are tossed, and various amounts are paid according to the outcome. In a certain game, if a four or eleven occurs on the first roll, the player wins. What is the probability of winning on the first roll?

  • ALGEBRA -

    4 = 2+2 or 3+1 or 1+3 = 3/36

    11 = 6+5 or 5+6 = 2/36

    Either-or probability is found by adding the individual probabilities.

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