Cho một bảng ô vuông 3x3. Điền ngẫu nhiên các số 1...
Câu hỏi: Cho một bảng ô vuông 3x3. Điền ngẫu nhiên các số 1, 2, 3, 4, 5, 6, 7, 8, 9 vào bảng trên ( mỗi ô chỉ điền một số). Gọi A là biến cố: “mỗi hàng, mỗi cột bất kì đều có ít nhất một số lẻ”. Xác suất của biến cố A bằng:![](data:image/png;base64,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)
A. \(P\left( A \right) = \frac{5}{7}\)
B. \(P\left( A \right) = \frac{1}{3}\)
C. \(P\left( A \right) = \frac{1}{{56}}\)
D. \(P\left( A \right) = \frac{{10}}{{21}}\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi THPT QG năm 2019 môn Toán Trường THPT Chuyên Lương Văn Tụy lần 2