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Mathematics, 12.07.2021 01:50 RegencySlayer5304

Từ một thùng đựng 10 chi tiết máy A và 5 chi tiết máy B lấy ngẫu nhiên 3 chi tiết. Xác suất để 3 chi tiết lấy ra cùng loại là

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Từ một thùng đựng 10 chi tiết máy A và 5 chi tiết máy B lấy ngẫu nhiên 3 chi tiết. Xác suất để 3 chi...

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