[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ft3WwyhveYYrPomLKfQfA7YovCPHeAWCYujTsLk-g1IE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-09-22 16:13:21",159921864,[8,9,10,11],"[0,0.3]","[0.4,0.7]","[0.1,0.7]","[0.1,0.4]",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},7,"7c85f473485b3fbaec7a615a69ab3075","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48eba3395437dd881b1b9275a0ad1028.png","概率论与数理统计2024下","work_36813504","1.2 概率的定义与性质","在一个随机试验中,事件A与事件B发生的概率分别是0.4和0.7,那麽事件AB同时发生的概率取值范围是",[21,33,38,47,55,58,67],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-09-22 16:08:51",159921353,[26,27,28,29],"A","B","C","D","设A和B是任意两个概率不为零的互不相容事件,则下列结论中肯定正确的是( ). A、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Faaa384fc6161ad6b75140fd9cb4d02d3.webp\"> 与 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6c5c0c54de8db84439bb83a7fa9d5d64.webp\"> 不相容 B、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Faaa384fc6161ad6b75140fd9cb4d02d3.webp\"> 与 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6c5c0c54de8db84439bb83a7fa9d5d64.webp\"> 相容 C、P(AB)=P(A)P(B) D、P(A-B)=P(A)","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":19,"source":31,"type":32},[],159921354,[37,37,37,37],"",{"answer":39,"createTime":23,"id":40,"options":41,"question":46,"source":31,"type":32},[],159921355,[42,43,44,45],"0.6","0.4","0.3","0.1","设P(A)=0.7, P(A-B)=0.3,则P(AB)=( ),〈课后请思考事件B的概率在什么范围〉",{"answer":48,"createTime":23,"id":49,"options":50,"question":54,"source":31,"type":32},[],159921356,[51,52,42,53],"0.8","0.7","1.0","设P(A)=0.7, P(A-B)=0.3, P(B)=0.5,则P(A+B)=( )",{"answer":56,"createTime":5,"id":6,"options":57,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":59,"createTime":60,"id":61,"options":62,"question":65,"source":31,"type":66},[],"2024-09-22 16:13:22",159921868,[63,64],"正确","错误","事件A发生的概率为0,那么AB发生的概率一定是0",3,{"answer":68,"createTime":60,"id":69,"options":70,"question":71,"source":31,"type":66},[],159921869,[63,64],"两个事件概率之和总不会小于两个事件和的概率"]