[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fgG90j-wrW_mRwpPbzcs-NcU5EE_dpnKhKsSqdQD4qrw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-07-11 00:13:16",140881920,[8,9,10,11],"0.94","0.93","0.92","0.95",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"5c79f64e53c9041e5daaf906409bdc59","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe4f88e5c5b598bc93164a3d4a1d62d8b.jpg","概率统计","work_34525398","第一次作业","用3个机床加工同一种零件,零件由各机床加工的概率分别为0.5、0.3、0.2,各机床加工的零件为合格品的概率分别等于0.94、0.9、0.95,全部产品的合格率为",[21,32,41,50,59,68,77,86,95,104],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],140881911,[25,26,27,28],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffcbccb5c69bfd6bbc96bb1a35a975ddc.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F60f74e39dad850d57b1cd34e9f904628.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2b6ae567bce6689fe24a50f73930ccd8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8a29320a2ac0ac94e574e3729e7ca164.png\">","设随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">服从\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff65f19e2ef88873c17dad48949991dd8.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1896f8c514ae958c1973925e03ab7480.png\">,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe8ebd51499934b670ec6fc4434f9af86.png\">所服从的分布为","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],140881912,[36,37,38,39],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff5798a7b77103f4794443b2910be2f3f.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5bb186d7bef2417a52e8ee61ef72c633.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0955f132b4c113e9da1abcc199b294da.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F167f5c786a92c32a14d29bb0a66fe99f.png\">","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">为随机变量,其方差存在,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2811d155a46c28bc12da77df0a888eb0.png\">为任意非零常数,则下列等式中正确的是",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],140881913,[45,46,47,48],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe8ebd51499934b670ec6fc4434f9af86.png\">相互独立","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe8ebd51499934b670ec6fc4434f9af86.png\">不相关","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2f6755621c90386df42722dbb9f5a186.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffd909f50631a7b07505b956307fa5c7f.png\">","如果随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe8ebd51499934b670ec6fc4434f9af86.png\">满足\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7c453e7c5fc88d212297a6b8a2b3ceaa.png\">,则下列式子正确的是",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],140881914,[54,55,56,57],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe585d55ada28d0a02b643bc494c12dcd.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4ad1f48228e6aa5f571a39cfb1c21e9e.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0394c64b68f709d1df8a006d9b6cfe7c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd837e05fd7d656225c70413c8c3a3a3a.png\">为连续函数","设连续性随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">的分布函数为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd837e05fd7d656225c70413c8c3a3a3a.png\">,下列结论中不一定成立的是",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],140881915,[63,64,65,66],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2484ef984e3ba0615a4e3d2191399903.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F104197818eff4071f5fe43adac2c540d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa6249ea44185e514fab279a3cd42219b.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F288664965ec3b8d9ec9bc8ea6d140870.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2484ef984e3ba0615a4e3d2191399903.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1d083b5a6be2fc6c939674c24eff0e17.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa6249ea44185e514fab279a3cd42219b.png\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F310ea3e0a98b462419d9b276df6c6cfb.png\">","设连续性随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">服从参数为2的泊松分布,则下列结论中正确的是",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],140881916,[72,73,74,75],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F982749ebced4da602a48d94d19ca1edd.png\">","5","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F602d0aa58de2b82e794d135c15595927.png\">","3","设随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe8ebd51499934b670ec6fc4434f9af86.png\">相互独立,且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe8ebd51499934b670ec6fc4434f9af86.png\">分别服从参数为1,4的泊松分布,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8a4be58833b90a01f303921cfb878da5.png\">",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":31},[],140881917,[81,82,83,84],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff6ee3f2f31f45212d694240e587ab35a.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F66e879aa49407877262448f6e152faaa.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc909a482fc5d62b10cd93e8180dece05.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd01689f05ac6feb7b126a58548e7caf.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff6070b3007871d4892cca0090637e81c.png\">",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":30,"type":31},[],140881918,[90,91,92,93],"均匀分布","泊松分布","正态分布","指数分布","设随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">的密度函数\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fadb731ca272b73dda54484830be90f21.png\">,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">服从",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":30,"type":31},[],140881919,[99,100,101,102],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F59e3a18b3ecf2fca4770b5e5bceacfe0.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F59ab45a7d12d543caa1c4379114e31a6.png\">","4","2","设随机变量\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">服从参数为2的指数分布,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe8ebd51499934b670ec6fc4434f9af86.png\">服从\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff65f19e2ef88873c17dad48949991dd8.png\">,且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa927cb568f658154e8530ffa3ec07ba1.png\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe8ebd51499934b670ec6fc4434f9af86.png\">相互独立,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F74ea98b9ec2aa49a4f0ded296419cae6.png\">",{"answer":105,"createTime":5,"id":6,"options":106,"question":19,"source":30,"type":31},[],[8,9,10,11]]