[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fi2ynT1781ClJsejz-Ui0L6RHXOYEuVdRkCnKLbbSKPk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-09-22 16:08:51",159921355,[8,9,10,11],"0.6","0.4","0.3","0.1",{"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","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〉",[21,32,38,41,49,58,67],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],159921353,[25,26,27,28],"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":33,"createTime":5,"id":34,"options":35,"question":37,"source":30,"type":31},[],159921354,[36,36,36,36],"","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",{"answer":39,"createTime":5,"id":6,"options":40,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":42,"createTime":5,"id":43,"options":44,"question":48,"source":30,"type":31},[],159921356,[45,46,8,47],"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":50,"createTime":51,"id":52,"options":53,"question":37,"source":30,"type":31},[],"2024-09-22 16:13:21",159921864,[54,55,56,57],"[0,0.3]","[0.4,0.7]","[0.1,0.7]","[0.1,0.4]",{"answer":59,"createTime":60,"id":61,"options":62,"question":65,"source":30,"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":30,"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"]