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Thaosky2000
2 năm trước
Hai công ty A và B cùng kinh doanh một mặt hàng. Xác suất thua lỗ của các công ty lần lượt là 0,2 và 0,4. Xác suất để cả 2 công ty cùng thua lỗ là 0,1. Tính xác suất để: a) Chỉ có một công ty thua lỗ.  b) Có công ty làm ăn không thua lỗ.  c) Biết có công ty làm ăn thua lỗ, xác suất để công ty B thua lỗ
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