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Advanced Algebra

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Sam and David are among 5 students who have a chance to win a free airline ticket to San Diego. 2 students from the group will be selected at random to win a ticket. What is the possibility that the 2 students selected will be Sam and David?

  • Advanced Algebra -

    Number of ways
    C(5,2) [five choose 2]
    Probability of choosing both
    = 1 / 10

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