匿名使用者
匿名使用者 發問時間: 教育與參考考試 · 1 0 年前

probability 高手~~~急!!!!

請問~~~

In the game of poker a "hand of cards" means 5 cards ramdonly selected(without replacement) from a desk of 52 cards. What is the probability that a hand of cards consists of cards of consecutive value, but contains no jacks, queens, kings and aces?

謝謝幫忙...我想不出來

拜託了~~

2 個解答

評分
  • 1 0 年前
    最佳解答

    Q: In the game of poker a "hand of cards" means 5 cards ramdonly

    selected ( without replacement ) from a desk of 52 cards. What is

    the probability that a hand of cards consists of cards of consecutive

    value, but contains no jacks, queens, kings and aces?

    Sol:

    Pstraight(2 to 6 ~ 6 to 10)

    = C41 * C41 * C41 * C41 * C41 * 5 / C525

    = ( 45 * 5 ) / ( 52 * 51 * 50 * 49 * 48 / 5! )

    = ( 45 * 5 * 5! ) / ( 52 * 51 * 50 * 49 * 48 )

    = 614400 / 311875200

    = 64 / 32487

    Ans: 64 / 32487

    P.S In this hand, the straight flush is included.

    參考資料: 數學小頭腦
  • 匿名使用者
    6 年前

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