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Mathematics, 18.06.2021 14:00 coopera1744

4/ Một đề thi trắc nghiệm có 15 câu hỏi, mỗi câu hỏi có 4 phương án trả lời nhưng chỉ có một phương án đúng. Tính xác suất để một sinh viên không học bài đi thi trả lời đúng ít nhất
1 câu.
A. 0,789
B. 0,879
C. 0,987
D. 0,978

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4/ Một đề thi trắc nghiệm có 15 câu hỏi, mỗi câu hỏi có 4 phương án trả lời nhưng chỉ có một phương...
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