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Mathematics, 25.07.2021 16:00 dkargbo6034

Trong một lô hàng gồm 100 sản phẩm có 30 sản phẩm do nhà máy 1 sản xuất, 45 sản phẩm do nhà máy 2 sản xuất, còn lại là của nhà máy 3. Tỷ lệ phế phẩm do nhà máy 1, 2, 3 sản xuất lần lượt là 2%, 3% và 1%. Lấy ngẫu nhiên 1 sản phẩm. Xác suất sản phẩm đó là phế phẩm là

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Trong một lô hàng gồm 100 sản phẩm có 30 sản phẩm do nhà máy 1 sản xuất, 45 sản phẩm do nhà máy 2 sả...
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