If you are dealt 5 cards from a standard 52-card deck,what i
3个回答
全部有C(5,52),
符合条件的有4×C(1,13)×C(1,13)×C(1,13)×C(2,13)
∴P=4×C(1,13)×C(1,13)×C(1,13)×C(2,13)/C(5,52)
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