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Mathematics, 29.07.2021 05:00 crawford184232323234

Trong một kỳ thi, sinh viên được phép thi 3 lần. Xác suất thi đỗ lần đầu là 0,8. Nếu lần đầu thi không đỗ thì xác suất đỗ lần thứ 2 là 0,6. Nếu hai lần đầu không đỗ thì xác suất đỗ lần
3 là 0,3

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Trong một kỳ thi, sinh viên được phép thi 3 lần. Xác suất thi đỗ lần đầu là 0,8. Nếu lần đầu thi kh...
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