[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fOd82pn3_LajoQ1pVYi_VpVoyHN191uqLacd9yIuLdcE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-12-21 09:42:19",118782134,[8,9,10,11],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe40e915f4069bbc64ced0ba6e30aaa22.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe22a13f7edcffe98b7a922d3fe5be3b8.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7390c6742b283db67f12827b93bce7d7.png\">相互独立","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe22a13f7edcffe98b7a922d3fe5be3b8.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7390c6742b283db67f12827b93bce7d7.png\">相关","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fff70813021d2931b76c96372e2bf6ed3.png\">",{"courseId":13,"courseImg":14,"courseName":15},"3ad5d42031b9df19154f0dc92d819718","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5064509a70b4af9e2501cfa4f3d64855.png","概率论与数理统计（仅用于完成作业及单元自测线上部分）","随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe22a13f7edcffe98b7a922d3fe5be3b8.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7390c6742b283db67f12827b93bce7d7.png\">满足\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6e10b8bd80c0c2f0ca87e1effded7d41.png\"> ,则下列选项正确的是( )",[18,29,32,41,51,59,68,77,86,93],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],118782131,[22,23,24,25],"9","24","18","12","已知随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4f30769d86d4432da63add60f417d8b4.png\"> ,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4deaa963b863b501a8b8f546ec24fe6c.png\">( )","v1",0,{"answer":30,"createTime":5,"id":6,"options":31,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":27,"type":28},[],118782140,[36,37,38,39],"5","无法计算","30","6","已知\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc9e2e9d28a22d5936e6ab1ac2790812b.png\">( )",{"answer":42,"createTime":43,"id":44,"options":45,"question":50,"source":27,"type":28},[],"2023-12-21 09:42:20",118782148,[46,47,48,49],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe22a13f7edcffe98b7a922d3fe5be3b8.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7390c6742b283db67f12827b93bce7d7.png\">不相互独立","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F638a41f6222130cdb187f04ef8f0c00c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe22a13f7edcffe98b7a922d3fe5be3b8.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7390c6742b283db67f12827b93bce7d7.png\">线性相关","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa716d9cbcd86f45a774e8f0dba89efb5.png\">","随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe22a13f7edcffe98b7a922d3fe5be3b8.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7390c6742b283db67f12827b93bce7d7.png\">满足\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc1476cdaa2cfabcd8b083b75445fc833.png\"> ,则( )",{"answer":52,"createTime":43,"id":53,"options":54,"question":58,"source":27,"type":28},[],118782156,[55,56,23,57],"44","8","32","若两个独立的随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe22a13f7edcffe98b7a922d3fe5be3b8.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7390c6742b283db67f12827b93bce7d7.png\">的方差分别为4和2,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3a667d5f39dd847b4a21239fbc61365e.png\"> 的方差为( )",{"answer":60,"createTime":43,"id":61,"options":62,"question":67,"source":27,"type":28},[],118782161,[63,64,65,66],"78","77","76","84","已知随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4f30769d86d4432da63add60f417d8b4.png\">,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe5470c8c4af71725c154241e9237765e.png\">( )",{"answer":69,"createTime":43,"id":70,"options":71,"question":76,"source":27,"type":28},[],118782170,[72,73,74,75],"0.1,0.2","0.2,0.3","0.4,0.1","0.3,0.2","设随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F22436ac64c605aa703c61e4b57a4a4ae.png\">的分布律如下,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F130970be36723c690883f7b784f65038.webp\">且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1dcf42151bcbeb7d5c13f65e32a61316.png\">,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F99648cf98bbd94bd73811f380479eb89.png\"> 值为()",{"answer":78,"createTime":43,"id":79,"options":80,"question":85,"source":27,"type":28},[],118782183,[81,82,83,84],"2.4","0","4.4","2","设随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe22a13f7edcffe98b7a922d3fe5be3b8.png\">的分布律如下,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4eb34b74f1e534b7377e792be6e0c5fe.webp\"> 则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4deaa963b863b501a8b8f546ec24fe6c.png\">( )",{"answer":87,"createTime":43,"id":88,"options":89,"question":92,"source":27,"type":28},[],118782196,[90,84,91,82],"1","3","设随机变量X和Y的联合概率分布如下,则X和Y的协方差\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7fc11ac588740f014ded9bb5b19f09f2.png\">( )",{"answer":94,"createTime":43,"id":95,"options":96,"question":101,"source":27,"type":28},[],118782208,[97,98,99,100],"n=8,p=0.3","n=6,p=0.4","n=4,p=0.6","n=24,p=0.1","已知随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe22a13f7edcffe98b7a922d3fe5be3b8.png\">服从二项分布,且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F190173e782a86480035ae7ac6533117d.png\">,则二项分布的参数\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Feb5c03b05bc701167ac2019d11ad995e.png\">的值为( )"]