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Mathematics, 30.10.2021 14:20 ReeceLehua01

Một sản phẩm được lấy ngẫu nhiên có thể là sản phẩm loại 1 (ký hiệu là A) hoặc sản phẩm loại 2 (ký hiệu là B) hoặc sản phẩm
loại 3 (ký hiệu là C). Hãy mô tả bằng lời các biến cố sau
a) A + B b) AB + C c) A + C d) AC

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Một sản phẩm được lấy ngẫu nhiên có thể là sản phẩm loại 1 (ký hiệu là A) hoặc sản phẩm loại 2 (ký...

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