[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fhRavhkJrYhBZk-J9RNZ6iwgGM3oJXrvh8WiZ5oTCvKg":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":22,"type":23},[],"2024-05-24 10:51:28",145733961,[8,9],"对","错",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},4,"e809b2246f6052df487f682efc72b641","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fed5e1ec4c4cf4e79f6685c64b7bbbd46.jpg","23-24-2概率论","2b56b990fb3d46d9824058d98093c870","3.2.2共享后习题(张虹)","二维离散型随机变量的边缘分布律可以决定联合分布律.( )",[19,24,30,39],{"answer":20,"createTime":5,"id":6,"options":21,"question":17,"source":22,"type":23},[],[8,9],"v1",0,{"answer":25,"createTime":5,"id":26,"options":27,"question":29,"source":22,"type":23},[],145733962,[8,28],"错[单选题]","设连续型随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd373d4d264fe9c95d5f47222a2b64935.png\">密度函数为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9670e2fae6fa453c47e226c56bd3b88f.png\">,边缘密度函数分别为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9ad94b143e9187ef7ae57cbbca09fe5a.png\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffb68dcf3121b7955cca16f2bbfdcdabc.png\">,则随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F954833a492bc1f5e68126e00de5769b0.png\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7e725fe4bf83a180ad231d136852cd61.png\">相互独立的充分必要条件是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4dbcdad5ab984307746637159e900571.png\">\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7706e950cb32f52c32f3eff33b8a0cd6.png\">\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9c2b8bf0688846a933544e0a32de394f.png\">.( )",{"answer":31,"createTime":5,"id":32,"options":33,"question":38,"source":22,"type":23},[],145733963,[34,35,36,37],"3","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1241ffa2e137ba68d15a32ce40f8f90b.png\">","2","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F540a0527d3deb5af8c8523cdab48aeac.png\">","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9cfd37ac2c52f20e7fd1375adcc94b4e.png\">的联合密度函数为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0e513804c7aefabce2c4e00c94052c21.png\">,则A=( )",{"answer":40,"createTime":5,"id":41,"options":42,"question":47,"source":22,"type":23},[],145733964,[43,44,45,46],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7c2b625ebeebc8ffc81915c1cd70c818.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F262e2834b7c07b93ca74821b127f4d88.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F07dbde55d739f92be99b70acf3089774.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff5091af91a2baa3f29443dd71659bfc3.png\">","随机点\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9cfd37ac2c52f20e7fd1375adcc94b4e.png\">落在矩形域\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F460be0c429bc53b0b293575e03f2f2f7.png\">的概率为( )"]