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Mathematics, 16.06.2021 06:40 ghernadez

Có hai hộp sản phẩm. Trong đó, hộp I có: 6 sản phẩm A, 4 sản phẩm B và 6 sản phẩm C, hộp II có: 5 sản phẩm A, 3 sản phẩm B và 8 sản phẩm C. Ta lấy ra 1 sản phẩm từ hộp I cho vào hộp II, sau đó lấy 1 sản phảm từ hộp II cho vào hộp I. Cuối cùng từ hộp I ta lấy ra 2 sản phẩm để kiểm tra a) Hãy tính xác suất sao cho 2 sản phẩm lấy ra từ hộp I là 1 sản phẩm A và một sản phẩm B
b) Gỉa sử 2 sản phẩm lấy ra từ hộp I là 2 sản phẩm loại C. Tính xác suất sản phẩm từ hộp II cho vào hộp I là B

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Có hai hộp sản phẩm. Trong đó, hộp I có: 6 sản phẩm A, 4 sản phẩm B và 6 sản phẩm C, hộp II có: 5 sả...

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