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a bag contains 12 black checkers and 12 red checkers. What is the probability of choosing two red checkers?

  • math -

    Did this students have the complete question?

    Yours in incomplete.
    You don't say how many checkers are chosen.

  • math -

    P(R1)=12/24 (first red)
    P(R2)=11/23 (second red)
    P(2*R)=(12/24)*(11/23)=11/46 (both red)

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