[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fOLmut7BSCLv3rI_Y0nOqWDfR1g3ylS9l0w5H2yfeQEQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2024-03-14 15:59:29",134021921,[8,9,10,11],"相关系数","决定系数","回归系数","回归平方",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},4,"f90e08622ddf19417f3f1842645338c9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc522ece3a0359c394f244bf5c1aaa081.jpg","田间试验与统计方法","be57bca3cf8546aca58e7de6823b350d","9.3.3 作业","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F268115f011356e76684751f649a40eae.png\">是( )",[21,26,35,44],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],134021922,[30,31,32,33],"x和Y的变异可以相互以线性关系说明的部分占90%","x和Y的变异可以相互以线性关系说明的部分占81%","x和Y的变异可以相互以线性关系说明的部分占10%","x和Y的变异可以相互以线性关系说明的部分占\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4a2990c8d87a8b6da0ea5b8ab4e38e2a.png\">=19%","若一资料相关系数r=0.9,则说明( )",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],134021923,[39,40,41,42],"0.9109;0.8273","0.9955;0.9910","0.6453;0.4164","0.9925;0.9851","有一双变数资料,已求得\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd1029bb03baffc0678a0f2b315e1c71d.png\">=138,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd93662fb8570732a6a4dc92e1ddfce76.png\">=65,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F457b1cea38f3c6914f0fd25c528cd6f0.png\">,n =6,则该资料的r和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F85de7b6433abc127556c98426d8ff282.png\">分别为( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],134021924,[48,49,50,51],"正;80.6%","正;76.2%","负;76.2%","负;80.6%","由金皇后玉米13株的株高与穗位高数据,算得相关系数r=0.8978(r0.01,11=0.684),则表明株高与穗位高呈()相关,它们的变异有( )可用线性关系互相说明"]