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Mathematics, 29.07.2021 19:10 twhalon72

Hai nhà máy cùng sản xuất ra một loại chi tiết. Năng suất của máy I gấp đôi máy II. Tỷ lệ chi tiết đạt tiêu chuẩn của máy I là 84%, của máy II là 90%. Lấy ngẫu nhiên 1 chi tiết từ lô hàng do 2 nhà máy sản xuất thì được chi tiết đạt tiêu chuẩn. Xác suất để chi tiết đó do máy II sản xuất bằng

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Hai nhà máy cùng sản xuất ra một loại chi tiết. Năng suất của máy I gấp đôi máy II. Tỷ lệ chi tiết đ...

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