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Mathematics, 14.06.2021 19:30 Jojo8421

Hộp I có 10 sản phẩm tốt, 2 hỏng, hộp II có 20 sản phẩm tốt, 4 hỏng. Từ hộp I lấy ra 1 sản phẩm bỏ qua hộp II, sau đó từ hộp II lấy ra 1 sản phẩm. a) Tính xác xuất từ hộp II là hỏng
b) Nếu sản phẩm từ hộp II là hỏng, tính xác xuất sản phẩm từ hộp I là tốt

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Hộp I có 10 sản phẩm tốt, 2 hỏng, hộp II có 20 sản phẩm tốt, 4 hỏng. Từ hộp I lấy ra 1 sản phẩm bỏ q...
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