[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fhlp1CC9T1f4R0YQtJ4QTkqJnVmJMiKW7NAqeQQ0BSR8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-04-23 16:41:54",184283893,[8,9,10,11],"一致估计","有效估计","无偏估计","一致和无偏估计",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},154,"1c759e4b1f1ba174e5f54339c1da4c09","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5865f7bbb6ac03f4df94010d0b50a871.jpg","概率论与数理统计-2025春季","work_43088593","Medical English 4: CET-4\u002F6 Homework for Chapter 8","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">是总体\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbea1e30975a1c8c3499a86d7e5a41422.png\">的一个参数,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd836560b9296a457541b7a140b1e648e.png\">是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">的一个估计量,且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F11768729308b4c5eaad73b32fb1d2c59.png\">,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd836560b9296a457541b7a140b1e648e.png\">是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">的",[21,32,41,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],184283891,[25,26,27,28],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3a257d18d5a246d11e61fe9b69e75e2a.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25dc02fa4dd67b6cef20dadf578ccb18.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffc1ba2942cd50870055fcc4ecb585b90.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbdbe22a9df8258c3c53df6fb713a584f.png\">","设总体\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbd7ee51d0fa578e105aa9960a2eac85e.png\">的密度函数为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F761b888d1d464f6be420c5bee0f90f61.png\">,其中\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3a9c7034e2f0109011c96ce828086d1a.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7659b1a1079005a67c8b3c50653b01c8.png\">=","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],184283892,[36,37,38,39],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F27d4b22f79357679a6771d6863396228.png\"> 是 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">的无偏估计","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe7f79d75a2697ea5c8d535f888c91b0a.png\"> 是 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">的最大似然估计","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe7f79d75a2697ea5c8d535f888c91b0a.png\"> 是 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">的相合估计","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe7f79d75a2697ea5c8d535f888c91b0a.png\"> 不是 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">的估计量","设总体\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbea1e30975a1c8c3499a86d7e5a41422.png\">的数学期望为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48b851da5bf8b6ea2b45a5438a7ae0a0.png\">是来自总体\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbea1e30975a1c8c3499a86d7e5a41422.png\">的简单随机样本,则下列命题中正确的是",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],184283894,[48,49,50,51],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31c57355ee10a09541fe9cdc31659c09.png\">以概率 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2b99a4ea72301a7b368d800fa07aa1c6.png\">包含 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">以 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2b99a4ea72301a7b368d800fa07aa1c6.png\">的概率落入 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31c57355ee10a09541fe9cdc31659c09.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">以 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd799c28a9cac0ffa29afd9ef4a48f1fa.png\">的概率落在 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31c57355ee10a09541fe9cdc31659c09.png\">之外","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31c57355ee10a09541fe9cdc31659c09.png\">以概率 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd799c28a9cac0ffa29afd9ef4a48f1fa.png\">包含 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">是总体\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbea1e30975a1c8c3499a86d7e5a41422.png\">的参数,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31c57355ee10a09541fe9cdc31659c09.png\">为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">的置信度为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3d8a0f2f4b5d9fbbe7c8603eb814da87.png\">的置信区间,即\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc17184a08ac4db451de7f2eebeb77b10.png\">,这就是说",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],184283895,[57,58,59,60],"增大","减小","不变","有时增大,有时减小","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6c5c537e9c7e6d5bab0f870fb6649694.png\">为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbea1e30975a1c8c3499a86d7e5a41422.png\">的样本,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">的置信度为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2b99a4ea72301a7b368d800fa07aa1c6.png\">的置信区间的长度随\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F660e847f6399a552faa2424a0d1e5343.png\">的增大而",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],184283896,[66,67,68,69],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F61c038ca5470d595290a975704a92bd0.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F13eedcba3dc32e2c7c6dad093c385f5a.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F75ec489f3643f8e7a195f5d3e858a117.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3f57660d4c497684bf08f971ea44df4d.png\">","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7f9ee70ef65a8103c490edb2972467c9.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fae2d36b160f092244a9fa49499e96e72.png\">为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbea1e30975a1c8c3499a86d7e5a41422.png\">的一个样本,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff78534e11c2fa473d2883a3955bfcc5d.png\">分别表示参数\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ee47c09bdcbf14e9e8a419d2a3a8b8b.png\">的矩估计和极大似然估计,则",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],184283897,[75,76,77,78],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcea31212c3ad15af0defd8e0084ad08b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff84a903b8ca3de1b68af955b1d3011c5.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6228f4a3c0411280764c78d7a6c2bf51.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Feecf75f81796c775925e6d9c4543aea0.png\"> ,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff84a903b8ca3de1b68af955b1d3011c5.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F699311579c64737a93dc76c702beea1a.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F699311579c64737a93dc76c702beea1a.png\">","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4d3e71ef142da2a93881311c8c936498.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F21a803c5ccebe7d0c9f1a6361e66602d.png\">为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbea1e30975a1c8c3499a86d7e5a41422.png\">的样本,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb09362cb24e2f539c6e73151a125533e.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31a4842d03c30bc4baf79e1f8121c1bf.png\">的极大似然估计为",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],184283898,[84,85,86,87],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">的无偏估计","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffba25168ed55447492cf580b6e582a4a.png\">的无偏估计","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">的矩估计","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffba25168ed55447492cf580b6e582a4a.png\">的极大似然估计","设总体\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbe896aef9cf166c0e53054f72f643563.png\">均未知,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6ba04bd1c15f602968314f1ec85dddb7.png\">是",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],184283899,[93,94,95,96],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd71cdacc29e174336132337007ff3f3f.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F810ec19f8b14f952af7ff7350157807e.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbd29db39f465e3bfb91fbe5f26cc545f.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8aa023e696ee8b75865ee3abe4b5e64b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F01cfa7114e881c14e3f846dbb167dc79.png\">是总体\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbea1e30975a1c8c3499a86d7e5a41422.png\">的样本,且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F129eb7f19db5af19541037115fbe0eb6.png\">,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">的无偏估计是",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],184283900,[102,103,104,105],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7e4d36255e3889cf87233b2a07734b6c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1d2d9cd25fe41ee2ae906ed06bd43071.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffd8084dc48de0a98e874a689531efa49.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5a438c25dc8859010e0086e3ac16922a.png\">","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0c583d7e11db4cab13302ef22acc7cea.png\">是来自\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F558ebe44112d9f67458e6874620b2da6.png\">的样本,则【 】是总体均值\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd1373314da89a501d9373c9f491b537.png\">的无偏估计"]