Xác suất của biến cố liên quan tới phép thử

Home Lớp 9 Toán lớp 9 - Sách Kết nối tri thức Bài 26. Xác suất của biến cố liên quan tới phép thửBài tập trung bình

{"common":{"save":0,"post_id":"7969","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"10457","post_id":"7969","mon_id":"1159278","chapter_id":"1159332","question":"Cho phép th\u1eed T, xét bi\u1ebfn c\u1ed1 E. K\u1ebft qu\u1ea3 c\u1ee7a phép th\u1eed T làm cho bi\u1ebfn c\u1ed1 E x\u1ea3y ra \u0111\u01b0\u1ee3c g\u1ecdi là<\/p>","options":["A.<\/strong> K\u1ebft qu\u1ea3 \u0111úng v\u1edbi E.","B.<\/strong> K\u1ebft qu\u1ea3 phù h\u1ee3p v\u1edbi E.","C.<\/strong> K\u1ebft qu\u1ea3 c\u1ee7a E.","D.<\/strong> K\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho E."],"correct":"4","level":"2","hint":"","answer":"Ch\u1ecdn D.<\/strong> K\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho E.<\/span><\/p>K\u1ebft qu\u1ea3 c\u1ee7a phép th\u1eed T làm cho bi\u1ebfn c\u1ed1 E x\u1ea3y ra \u0111\u01b0\u1ee3c g\u1ecdi là k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho E<\/strong>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2025-03-05 09:34:07","option_type":"txt","len":2},{"id":"10458","post_id":"7969","mon_id":"1159278","chapter_id":"1159332","question":"Gi\u1ea3 s\u1eed các k\u1ebft qu\u1ea3 có th\u1ec3 c\u1ee7a phép th\u1eed T là \u0111\u1ed3ng kh\u1ea3 n\u0103ng x\u1ea3y ra. Khi \u0111ó xác su\u1ea5t c\u1ee7a bi\u1ebfn c\u1ed1 E có liên quan t\u1edbi T \u0111\u01b0\u1ee3c ký hi\u1ec7u là<\/p>","options":["A.<\/strong> A(E)","B.<\/strong> P(E)","C.<\/strong> Q(E)","D.<\/strong> n(E)"],"correct":"2","level":"2","hint":"","answer":"Ch\u1ecdn B.<\/strong> P(E).<\/span><\/p>Xác su\u1ea5t c\u1ee7a bi\u1ebfn c\u1ed1 E có liên quan t\u1edbi T \u0111\u01b0\u1ee3c ký hi\u1ec7u là P(E)<\/strong>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2025-03-05 09:35:26","option_type":"txt","len":0},{"id":"10460","post_id":"7969","mon_id":"1159278","chapter_id":"1159332","question":"Có ba con \u0111\u01b0\u1eddng M, N, P \u0111\u1ec3 \u0111i t\u1eeb thành ph\u1ed1 A \u0111\u1ebfn thành ph\u1ed1 B. Trong 3 ngày liên ti\u1ebfp ph\u1ea3i \u0111i t\u1eeb A \u0111\u1ebfn B, Lan \u0111ã ch\u1ecdn l\u1ea7n l\u01b0\u1ee3t ng\u1eabu nhiên t\u1eebng con \u0111\u01b0\u1eddng \u0111\u1ec3 di chuy\u1ec3n. Hãy cho bi\u1ebft có bao nhiêu k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho bi\u1ebfn c\u1ed1 C: "Con \u0111\u01b0\u1eddng M \u0111\u01b0\u1ee3c ch\u1ecdn cào ngày cu\u1ed1i cùng".<\/strong><\/p>","options":["A.<\/strong> Có 3 k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho bi\u1ebfn c\u1ed1 C là (M;N;P), (N;M;P), (N;P;M).","B.<\/strong> Có 2 k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho bi\u1ebfn c\u1ed1 C là (N;P;M), (P;N;M).","C.<\/strong> Có 3 k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho bi\u1ebfn c\u1ed1 C là (N;P;M), (P;N;M), (N;M;P).","D.<\/strong> Có 2 k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho bi\u1ebfn c\u1ed1 C là (N;M;P), (N;P;M)."],"correct":"2","level":"2","hint":"","answer":"Ch\u1ecdn B.<\/strong> Có 2 k\u1ebft qu\u1ea3 thu\u1eadn l\u1ee3i cho bi\u1ebfn c\u1ed1 C là (N;P;M), (P;N;M).<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2025-03-05 09:42:51","option_type":"txt","len":3}]}