{"common":{"save":0,"post_id":"7150","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5812","post_id":"7150","mon_id":"1158924","chapter_id":"1159182","question":"<p>Cho A và B là hai bi\u1ebfn c\u1ed1 \u0111\u1ed9c l\u1eadp v\u1edbi nhau, bi\u1ebft P(A) = 0,2; P(B) = 0,4. Khi \u0111ó P(AB) b\u1eb1ng<\/p>","options":["<strong>A.<\/strong> 0,04","<strong>B.<\/strong> 0,08","<strong>C.<\/strong> 0,03","<strong>D.<\/strong> 0,02"],"correct":"2","level":"1","hint":"","answer":"<p>Vì A và B là hai bi\u1ebfn c\u1ed1 \u0111\u1ed9c l\u1eadp nên P(AB) = P(A) . P(B) = 0,2 . 0,4 = 0,08.<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> 0,08.<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-05-27 05:00:48","option_type":"txt","len":0},{"id":"5814","post_id":"7150","mon_id":"1158924","chapter_id":"1159182","question":"<p>Cho A, B, C là các bi\u1ebfn c\u1ed1 \u0111\u1ed9c l\u1eadp v\u1edbi nhau, bi\u1ebft P(A) = 0,2; P(B) = 0,4;<br \/>P(C) = 0,5. Khi \u0111ó P(A).P(B).P(C) b\u1eb1ng<\/p>","options":["<strong>A.<\/strong> 0,04","<strong>B.<\/strong> 0,08","<strong>C.<\/strong> 0,03","<strong>D.<\/strong> 0,02"],"correct":"1","level":"1","hint":"","answer":"<p>P(A).P(B).P(C) = 0,2 . 0,4 . 0,5 = 0,04.<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 0,04.<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-05-27 05:04:18","option_type":"txt","len":0},{"id":"5816","post_id":"7150","mon_id":"1158924","chapter_id":"1159182","question":"<p>Hai x\u1ea1 th\u1ee7 A, B cùng b\u1eafn \u0111\u1ed9c l\u1eadp vào m\u1ed9t m\u1ee5c tiêu. Bi\u1ebft xác su\u1ea5t b\u1eafn trúng c\u1ee7a các x\u1ea1 th\u1ee7 l\u1ea7n l\u01b0\u1ee3t là P(A) = 0,3; P(B) = 0,4. Xác xu\u1ea5t \u0111\u1ec3 c\u1ea3 hai ng\u01b0\u1eddi \u0111\u1ec1u b\u1eafn trúng m\u1ee5c tiêu là<\/p>","options":["<strong>A.<\/strong> 0,7","<strong>B.<\/strong> 0,4","<strong>C.<\/strong> 0,12","<strong>D.<\/strong> 0,1"],"correct":"3","level":"1","hint":"","answer":"<p>Vì các bi\u1ebfn c\u1ed1 là \u0111\u1ed9c l\u1eadp nên P(AB) = P(A) . P(B) = 0,3 . 0,4 = 0,12.<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> 0,12.<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-05-27 05:11:52","option_type":"txt","len":0}]}
