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Mathematics, 14.06.2021 14:00 AM28

Trong bộ bài có 52 lá, trong đó có 4 lá Át. Lấy ngẫu nhiên 3 lá. Tính xác suất để có:a) 1 hoặc 2 lá Át ?b) Ít nhất 1 lá Át ?

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Trong bộ bài có 52 lá, trong đó có 4 lá Át. Lấy ngẫu nhiên 3 lá. Tính xác suất để có:a) 1 hoặc 2 lá...
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