{"common":{"save":0,"post_id":"8759","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6333","post_id":"8759","mon_id":"1159285","chapter_id":"1159383","question":"<p>Cho hai bi\u1ebfn c\u1ed1 A và B b\u1ea5t kì v\u1edbi P(B) > 0. Kh\u1eb3ng \u0111\u1ecbnh nào d\u01b0\u1edbi \u0111ây <strong>\u0111úng<\/strong>?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$P(A|B)=\\dfrac{P(A\\cap B)}{P(A)}$<\/span>.","<strong>B.<\/strong> <span class=\"math-tex\">$P(A|B)=\\dfrac{P(A)}{P(A\\cap B)}$<\/span>.","<strong>C.<\/strong> <span class=\"math-tex\">$P(A|B)=\\dfrac{P( B)}{P(A\\cap B)}$<\/span>.","<strong>D.<\/strong> <span class=\"math-tex\">$P(A|B)=\\dfrac{P(A\\cap B)}{P(B)}$<\/span>."],"correct":"4","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> <span class=\"math-tex\">$P(A|B)=\\dfrac{P(A\\cap B)}{P(B)}$<\/span>.<\/span><\/p><p>V\u1edbi hai bi\u1ebfn c\u1ed1 A và B b\u1ea5t kì v\u1edbi P(B). Ta có <span class=\"math-tex\">$P(A|B)=\\dfrac{P(A\\cap B)}{P(B)}$<\/span>.<\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2025-04-06 10:49:34","option_type":"math","len":0},{"id":"6334","post_id":"8759","mon_id":"1159285","chapter_id":"1159383","question":"<p>Cho hai bi\u1ebfn c\u1ed1 A và B. Ch\u1ecdn m\u1ec7nh \u0111\u1ec1 <strong>\u0111úng<\/strong>?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$P(A\\cap B)=P(B).P(B|A)$<\/span>.","<strong>B.<\/strong> <span class=\"math-tex\">$P(A\\cap B)=P(A).P(B|A)$<\/span>.","<strong>C.<\/strong> <span class=\"math-tex\">$P(A\\cap B)=P(B|A)$<\/span>.","<strong>D.<\/strong> <span class=\"math-tex\">$P(A\\cap B)=P(A|\\overline{B})$<\/span>."],"correct":"2","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"math-tex\">$P(A\\cap B)=P(A).P(B|A)$<\/span>.<\/span><\/p><p>Ta có: <span class=\"math-tex\">$P(A\\cap B)=P(A).P(B|A)=P(B).P(A|B)$<\/span>.<\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2025-04-06 10:53:55","option_type":"math","len":0},{"id":"6336","post_id":"8759","mon_id":"1159285","chapter_id":"1159383","question":"<p>Cho hai bi\u1ebfn c\u1ed1 A và B, công th\u1ee9c tính xác su\u1ea5t toàn ph\u1ea7n là<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$P(A)=P(B).P(A|\\overline{B})+P(\\overline{B}).P(A|B)$<\/span>.","<strong>B.<\/strong> <span class=\"math-tex\">$P(B)=P(A).P(A|\\overline{B})+P(\\overline{A}).P(A|B)$<\/span>.","<strong>C.<\/strong> <span class=\"math-tex\">$P(A)=P(B).P(A|B)+P(\\overline{B}).P(A|\\overline{B})$<\/span>.","<strong>D.<\/strong> <span class=\"math-tex\">$P(B)=P(\\overline{A}).P(A|\\overline{B})+P(A).P(A|B)$<\/span>."],"correct":"3","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> <span style=\"color:#16a085;\"><span class=\"math-tex\">$P(A)=P(B).P(A|B)+P(\\overline{B}).P(A|\\overline{B})$<\/span><\/span>.<\/span><\/p><p>Công th\u1ee9c tính xác su\u1ea5t toàn ph\u1ea7n là: <span class=\"math-tex\">$P(A)=P(B).P(A|B)+P(\\overline{B}).P(A|\\overline{B})$<\/span>.<\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2025-04-06 11:02:13","option_type":"math","len":0}]}
