{"common":{"save":0,"post_id":"7973","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"10552","post_id":"7973","mon_id":"1159278","chapter_id":"1159332","question":"<p>Xét phép th\u1eed T: “Tung ba \u0111\u1ed3ng xu \u0111\u1ed3ng ch\u1ea5t và cân \u0111\u1ed1i”. S\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a không gian m\u1eabu là:<\/p>","options":["<strong>A.<\/strong> 4.","<strong>B.<\/strong> 5.","<strong>C.<\/strong> 6.","<strong>D.<\/strong> 8."],"correct":"4","level":"2","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 8.<\/span><\/p><p>Không gian m\u1eabu c\u1ee7a phép th\u1eed ng\u1eabu nhiên này có 8 ph\u1ea7n t\u1eed:<\/p><p><span class=\"math-tex\">$\\Omega$<\/span> = {SSS; SSN; SNS; NSS; SNN; NSN; NNS; NNN}.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2025-03-13 08:50:40","option_type":"txt","len":0},{"id":"10554","post_id":"7973","mon_id":"1159278","chapter_id":"1159332","question":"<p>Xét phép th\u1eed tung m\u1ed9t con xúc x\u1eafc cân \u0111\u1ed1i và \u0111\u1ed3ng ch\u1ea5t có 6 m\u1eb7t. G\u1ecdi A là bi\u1ebfn c\u1ed1 “Nh\u1eadn \u0111\u01b0\u1ee3c m\u1eb7t có s\u1ed1 ch\u1ea5m không chia h\u1ebft cho 3”. Có bao nhiêu k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho bi\u1ebfn c\u1ed1 A ?<\/p>","options":["<strong>A.<\/strong> 2.","<strong>B.<\/strong> 3.","<strong>C.<\/strong> 4.","<strong>D.<\/strong> 6."],"correct":"3","level":"2","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> 4.<\/span><\/p><p>Ta có: <span class=\"math-tex\">$\\Omega$<\/span> = {1; 2; 3; 4; 5; 6}.<\/p><p>Trong \u0111ó có 4 s\u1ed1 không chia h\u1ebft cho 3 là 1; 2; 4; 5.<\/p><p>V\u1eady có 4 k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho bi\u1ebfn c\u1ed1 A.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2025-03-13 08:57:35","option_type":"txt","len":0},{"id":"10556","post_id":"7973","mon_id":"1159278","chapter_id":"1159332","question":"<p>M\u1ed9t bó hoa g\u1ed3m ba bông hoa màu \u0111\u1ecf và m\u1ed9t bông hoa màu vàng. B\u1ea1n An ch\u1ecdn ng\u1eabu nhiên 2 bông hoa t\u1eeb bó hoa \u0111ó. S\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a không gian m\u1eabu c\u1ee7a phép th\u1eed là:<\/p>","options":["<strong>A.<\/strong> 6.","<strong>B.<\/strong> 2.","<strong>C.<\/strong> 5.","<strong>D.<\/strong> 8."],"correct":"1","level":"2","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 6.<\/span><\/p><p>Kí hi\u1ec7u 3 bông hoa màu \u0111\u1ecf là \u0111\u1ecf 1, \u0111\u1ecf 2, \u0111\u1ecf 3.<\/p><p>Ta có: Ω = {(\u0111\u1ecf 1; vàng), (\u0111\u1ecf 2; vàng), (\u0111\u1ecf 3; vàng), (\u0111\u1ecf 1; \u0111\u1ecf 2), (\u0111\u1ecf 2; \u0111\u1ecf 3), (\u0111\u1ecf 1; \u0111\u1ecf 3)}.<\/p><p>Suy ra s\u1ed1 ph\u1ea7n t\u1eed c\u1ee7a không gian m\u1eabu c\u1ee7a phép th\u1eed là 6.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2025-03-13 08:59:42","option_type":"txt","len":0}]}
