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Mathematics, 14.06.2021 15:30 neyssa83
Một nhà máy có 2 phân xưởng sản xuất một loại sản phẩm. Xưởng I sản xuất 55%, xưởng II sản xuất 45% số sản phẩm của nhà máy. Tỷ lệ phế phẩm của mỗi xưởng tương ứng là 1% và 2%.
a) Lấy ngẫu nhiên 1 sản phẩm từ nhà máy, tính xác suất nhận được phế phẩm. Tỷ lệ phế phẩm của nhà máy là bao nhiêu?
b) Giả sử lấy được phế phẩm, tính xác suất nó do xưởng I sản suất.
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Một nhà máy có 2 phân xưởng sản xuất một loại sản phẩm. Xưởng I sản xuất 55%, xưởng II sản xuất 45%...
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