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基礎數學

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國立中興大學 2025 · 考試 · 第 19 題

(2 points) In a four-player bridge game, if A and B get seven spades, what is the probability that C gets four spades?

  • (A)
    (64)(209)(2613)\dfrac{\binom{6}{4}\binom{20}{9}}{\binom{26}{13}}
  • (B)
    (64)(469)(5213)\dfrac{\binom{6}{4}\binom{46}{9}}{\binom{52}{13}}
  • (C)
    (64)(469)(2613)\dfrac{\binom{6}{4}\binom{46}{9}}{\binom{26}{13}}
  • (D)
    (64)(209)(5213)\dfrac{\binom{6}{4}\binom{20}{9}}{\binom{52}{13}}
  • (E)
    (53)(5213)\dfrac{\binom{5}{3}}{\binom{52}{13}}

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