Bảng tần số, tần số tương đối ghép nhóm và biểu đồ

Home Lớp 9 Toán lớp 9 - Sách Kết nối tri thức Bài 24. Bảng tần số, tần số tương đối ghép nhóm và biểu đồBài tập trung bình

{"common":{"save":0,"post_id":"7961","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"10073","post_id":"7961","mon_id":"1159278","chapter_id":"1159331","question":"Cho s\u1ed1 li\u1ec7u d\u01b0\u1edbi \u0111ây là s\u1ed1 cân n\u1eb7ng c\u1ee7a 30 h\u1ecdc sinh l\u1edbp 6A (\u0111\u01a1n v\u1ecb kg). <\/p><svg height=\"210\" width=\"320\"> <g><title><\/title><rect fill=\"#fff\" height=\"212\" id=\"canvas_background\" width=\"322\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_23\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><rect fill=\"#ffffaa\" height=\"40\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"316\" x=\"1.3\" y=\"4.65\"><\/rect> <rect fill=\"#aaffd4\" height=\"40\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"1.5\" width=\"316\" x=\"1.3\" y=\"44.65\"><\/rect> <rect fill=\"#ffaaff\" height=\"40\" id=\"svg_3\" stroke=\"#000\" 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y2=\"206.64999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_9\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"217\" x2=\"217\" y1=\"4.65\" y2=\"205.64999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_10\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"267\" x2=\"267\" y1=\"4.65\" y2=\"205.64999\"><\/line> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"13.3\" xml:space=\"preserve\" y=\"33.65\">30<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"68.3\" xml:space=\"preserve\" y=\"34\">37<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"121.3\" xml:space=\"preserve\" y=\"33.65\">35<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"176.3\" xml:space=\"preserve\" y=\"34\">35<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"227.3\" xml:space=\"preserve\" y=\"33.65\">36<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"280.3\" xml:space=\"preserve\" y=\"33\">40<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"13.3\" xml:space=\"preserve\" y=\"74\">32<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_18\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"57.3\" xml:space=\"preserve\" y=\"74\">42,5<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_19\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"113.3\" xml:space=\"preserve\" y=\"74\">36,5<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_20\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"176.3\" xml:space=\"preserve\" y=\"74\">43<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_21\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"227.3\" xml:space=\"preserve\" y=\"74\">44<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_22\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"279.99998\" xml:space=\"preserve\" y=\"74\">43<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_24\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"13.3\" xml:space=\"preserve\" y=\"113\">40<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_25\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"68.3\" xml:space=\"preserve\" y=\"113\">40<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_26\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"121.3\" xml:space=\"preserve\" y=\"113\">41<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_27\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"170.3\" xml:space=\"preserve\" y=\"113\">43,5<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_28\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"222.3\" xml:space=\"preserve\" y=\"113\">35,5<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_29\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"280.3\" xml:space=\"preserve\" y=\"113\">45<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_31\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"13.3\" xml:space=\"preserve\" y=\"153\">34<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_32\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"68.3\" xml:space=\"preserve\" y=\"153\">39<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_33\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"114.3\" xml:space=\"preserve\" y=\"153\">44,5<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_34\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"176.3\" xml:space=\"preserve\" y=\"153\">42<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_35\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"227.3\" xml:space=\"preserve\" y=\"153\">41<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_36\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"280.3\" xml:space=\"preserve\" y=\"153\">31<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_37\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"13.3\" xml:space=\"preserve\" y=\"193\">41<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_38\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"68.3\" xml:space=\"preserve\" y=\"193\">36<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_39\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"121.3\" xml:space=\"preserve\" y=\"193\">37<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_40\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"176.3\" xml:space=\"preserve\" y=\"193\">40<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_41\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"227.3\" xml:space=\"preserve\" y=\"193\">42<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_42\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" x=\"280.3\" xml:space=\"preserve\" y=\"193\">34<\/text> <\/g> <\/svg><\/span><\/p>Ng\u01b0\u1eddi ta chia làm ba nhóm [30;35), [35;40), [40;45). Khi \u0111ó t\u1ea7n s\u1ed1 ghép nhóm c\u1ee7a nhóm [30;35) là:<\/p>","options":["A.<\/strong> 5","B.<\/strong> 9","C.<\/strong> 10","D.<\/strong> 16"],"correct":"1","level":"2","hint":"","answer":"Ch\u1ecdn A.<\/strong> 5<\/span><\/p>S\u1ed1 h\u1ecdc sinh có cân n\u1eb7ng t\u1eeb 30kg \u0111\u1ebfn d\u01b0\u1edbi 35kg là 5 h\u1ecdc sinh.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2025-01-25 07:17:03","option_type":"txt","len":0},{"id":"10074","post_id":"7961","mon_id":"1159278","chapter_id":"1159331","question":"K\u1ebft qu\u1ea3 \u0111o t\u1ed1c \u0111\u1ed9 xe c\u1ee7a 25 xe ô tô (\u0111\u01a1n v\u1ecb: km\/h) khi \u0111i qua m\u1ed9t tr\u1ea1m quan sát \u0111\u01b0\u1ee3c ghi l\u1ea1i \u1edf b\u1ea3ng sau:<\/p><svg height=\"190\" width=\"320\"> <g><title><\/title><rect fill=\"#fff\" height=\"192\" id=\"canvas_background\" width=\"322\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_35\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"4\" xml:space=\"preserve\" y=\"23\">48,6<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"72\" xml:space=\"preserve\" y=\"22.65\">49,8<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"140.29999\" xml:space=\"preserve\" y=\"22.65\">54,2<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"208\" xml:space=\"preserve\" y=\"22.65\">60<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_5\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"276\" xml:space=\"preserve\" y=\"22.65\">53,3<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_6\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"4\" xml:space=\"preserve\" y=\"63\">58,9<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_7\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"72\" xml:space=\"preserve\" y=\"63\">45,3<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_8\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"140.29999\" xml:space=\"preserve\" y=\"63\">53<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_9\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"208\" xml:space=\"preserve\" y=\"63\">48,2<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_10\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"276\" xml:space=\"preserve\" y=\"63\">53<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_11\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"4\" xml:space=\"preserve\" y=\"103\">46,3<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_12\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"72\" xml:space=\"preserve\" y=\"103\">62<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_13\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"140.29999\" xml:space=\"preserve\" y=\"103\">57,4<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_14\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"208\" xml:space=\"preserve\" y=\"103\">49,4<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_15\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"276\" xml:space=\"preserve\" y=\"103\">62,6<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_16\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"4\" xml:space=\"preserve\" y=\"143\">48,4<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_17\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"72\" xml:space=\"preserve\" y=\"143\">61,4<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_18\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"140.29999\" xml:space=\"preserve\" y=\"143\">47,8<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_19\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"208\" xml:space=\"preserve\" y=\"143\">55<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_20\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"276\" xml:space=\"preserve\" y=\"143\">41,2<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_21\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"4\" xml:space=\"preserve\" y=\"183\">40,9<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_22\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"72\" xml:space=\"preserve\" y=\"183\">42,8<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_23\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"140.29999\" xml:space=\"preserve\" y=\"183\">45,5<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_24\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"208\" xml:space=\"preserve\" y=\"183\">48,8<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_25\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"276\" xml:space=\"preserve\" y=\"183\">54,3<\/text> <line fill=\"none\" id=\"svg_26\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"57.3\" x2=\"57.3\" y1=\"-0.35\" y2=\"191.64999\"><\/line> <line fill=\"none\" id=\"svg_27\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"124.3\" x2=\"124.3\" y1=\"-0.35\" y2=\"191.64999\"><\/line> <line fill=\"none\" id=\"svg_28\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"193.3\" x2=\"193.3\" y1=\"-0.35\" y2=\"191.64999\"><\/line> <line fill=\"none\" id=\"svg_29\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"262.3\" x2=\"262.3\" y1=\"-0.35\" y2=\"191.64999\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_30\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"-1.7\" x2=\"321.29998\" y1=\"35.65\" y2=\"36\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_31\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"-1.7\" x2=\"324\" y1=\"74.65\" y2=\"75\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_32\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"339.29999\" x2=\"339.29999\" y1=\"-87.35\" y2=\"-88.35\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_33\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"-1.7\" x2=\"324\" y1=\"116.65\" y2=\"117\"><\/line> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_34\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"-1.7\" x2=\"324\" y1=\"158.65\" y2=\"159\"><\/line> <rect fill=\"none\" height=\"189\" id=\"svg_36\" stroke=\"#000\" stroke-width=\"1.5\" width=\"316.99999\" x=\"1.29999\" y=\"0.65\"><\/rect> <\/g> <\/svg><\/span><\/p>Hãy xác \u0111\u1ecbnh nhóm có t\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i cao nh\u1ea5t.<\/p>","options":["A.<\/strong> [45; 50)","B.<\/strong> [50; 55)","C.<\/strong> [55; 60)","D.<\/strong> [60; 65)"],"correct":"1","level":"2","hint":"48,6    54,2    53,3    45,3    48,2<\/span>    46,3    57,4    62,6    61,4    55<\/span>       40,9    45,5    54,3<\/span><\/p>49,8    60 <\/span>      58,9    53       53       62       49,4<\/span>    48,4    47,8    41,2    42,8    48,8<\/span><\/p>","answer":"Ch\u1ecdn A.<\/strong> [45; 50)<\/span><\/p>B\u1ea3ng t\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i ghép nhóm là:<\/p><svg height=\"260\" width=\"305\"> <g> <title><\/title> <rect fill=\"#fff\" height=\"262\" id=\"canvas_background\" width=\"307\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> <title><\/title> <rect fill=\"#ffff56\" height=\"40\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"300\" x=\"2.3\" y=\"2.65\"><\/rect> <rect fill=\"#fff\" height=\"213.99999\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"1.5\" width=\"300\" x=\"2.3\" y=\"42.65\"><\/rect> <line fill=\"none\" fill-opacity=\"null\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"145\" x2=\"145\" y1=\"2.65\" y2=\"256.64999\"><\/line> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"10.3\" xml:space=\"preserve\" y=\"29.65\">T\u1ed1c \u0111\u1ed9 (km\/h)<\/text> <text fill=\"#000000\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"151.3\" xml:space=\"preserve\" y=\"29.65\">T\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"40\" xml:space=\"preserve\" y=\"110\">[45; 50)<\/text> <text fill=\"#000000\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"200\" xml:space=\"preserve\" y=\"110\">40%<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"40\" xml:space=\"preserve\" y=\"70\">[40; 45)<\/text> <text fill=\"#000000\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"200\" xml:space=\"preserve\" y=\"230\">12%<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"40\" xml:space=\"preserve\" y=\"150\">[50; 55)<\/text> <text fill=\"#000000\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"200\" xml:space=\"preserve\" y=\"150\">20%<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"40\" xml:space=\"preserve\" y=\"190\">[55; 60)<\/text> <text fill=\"#000000\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"200\" xml:space=\"preserve\" y=\"190\">16%<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"40\" xml:space=\"preserve\" y=\"230\">[60; 65)<\/text> <text fill=\"#000000\" font-family=\"Times New Roman, Times, serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"200\" xml:space=\"preserve\" y=\"70\">12%<\/text> <\/g> <\/svg><\/span><\/p>Nhóm có t\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i cao nh\u1ea5t là [45; 50)<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2025-01-25 07:25:39","option_type":"txt","len":1},{"id":"10075","post_id":"7961","mon_id":"1159278","chapter_id":"1159331","question":"Cho b\u1ea3ng t\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i ghép nhóm v\u1ec1 th\u1eddi gian \u0111i t\u1eeb nhà \u0111\u1ebfn tr\u01b0\u1eddng h\u1ecdc c\u1ee7a h\u1ecdc sinh l\u1edbp 9A nh\u01b0 sau:<\/p><svg height=\"160\" width=\"320\"> <g><title><\/title><rect fill=\"#fff\" height=\"162\" id=\"canvas_background\" width=\"322\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><rect fill=\"#aaff56\" height=\"150\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"106\" x=\"3.3\" y=\"3.65\"><\/rect> <rect fill=\"#fff\" height=\"150\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"1.5\" width=\"65\" x=\"109.3\" y=\"3.65\"><\/rect> <rect fill=\"#fff\" height=\"150\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"1.5\" width=\"75\" x=\"174.3\" y=\"3.65\"><\/rect> <rect fill=\"#fff\" height=\"150\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"1.5\" width=\"69\" x=\"246.3\" y=\"3.65\"><\/rect> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"13.3\" xml:space=\"preserve\" y=\"25.65\">Th\u1eddi gian<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"7.3\" xml:space=\"preserve\" y=\"51.65\">\u0111\u1ebfn tr\u01b0\u1eddng<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"21.3\" xml:space=\"preserve\" y=\"73.65\">(phút)<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"21.3\" xml:space=\"preserve\" y=\"119.65\">T\u1ea7n s\u1ed1<\/text> <text fill=\"#000000\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"11.3\" xml:space=\"preserve\" y=\"144.65\">t\u01b0\u01a1ng \u0111\u1ed1i<\/text> <line fill=\"none\" id=\"svg_11\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"2.3\" x2=\"315.29999\" y1=\"91\" y2=\"91\"><\/line> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"115.3\" xml:space=\"preserve\" y=\"51.65\">[0; 10)<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"179.29999\" xml:space=\"preserve\" y=\"52\">[10; 20)<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"249.29999\" xml:space=\"preserve\" y=\"51.65\">[20; 30)<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_15\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"125.3\" xml:space=\"preserve\" y=\"128.65\">20%<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_16\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"200.29999\" xml:space=\"preserve\" y=\"128.65\">55%<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"’Times New Roman’, Times, serif\" font-size=\"20\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"267.29999\" xml:space=\"preserve\" y=\"128.65\">25%<\/text> <\/g> <\/svg><\/span><\/p>\u0110\u1ec3 v\u1ebd bi\u1ec3u \u0111\u1ed3 t\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i ghép nhóm d\u1ea1ng \u0111o\u1ea1n th\u1eb3ng, ta dùng giá tr\u1ecb nào \u0111\u1ea1i di\u1ec7n cho nhóm s\u1ed1 li\u1ec7u [10; 20)?<\/p>","options":["A.<\/strong> 10","B.<\/strong> 15","C.<\/strong> 20","D.<\/strong> 30"],"correct":"2","level":"2","hint":"","answer":"Ch\u1ecdn B.<\/strong> 15<\/span><\/p>\u0110\u1ec3 v\u1ebd bi\u1ec3u \u0111\u1ed3 t\u1ea7n s\u1ed1 t\u01b0\u01a1ng \u0111\u1ed1i ghép nhóm d\u1ea1ng \u0111o\u1ea1n th\u1eb3ng, giá tr\u1ecb \u0111\u1ea1i di\u1ec7n cho nhóm s\u1ed1 li\u1ec7u [10; 20) là <\/p>$\\dfrac{10+20}{2}=15$<\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"127","test":"0","date":"2025-01-25 07:27:37","option_type":"txt","len":0}]}