已知p(a)=p(b)=p(c)=1/4 p(ab)=0 p(ac)=p(bc)=1/16 a b c恰好有一个发生的概率
第1个回答 2021-11-14
简单计算一下即可,答案如图所示
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/359b033b5bb5c9ea0ed01c72c739b6003af3b37b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/96dda144ad34598280a9fa031ef431adcbef847b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
相似回答
已知P(A)=P(B)=P(C)=1/4,P(AB)=0,P(AC)=P(BC)=1/8,则A,B,C全不发生的...答:P(AB)=P(BC)=0,说明B发生则A和C都不发生,事件A,B,C全不发生的对立事件是A B C中至少有一件发生,A B C中至少有一件发生的概率是P=P(A∪B∪C)=P(A)+P(A)+P(C)-P(A∩B)-P(A∩C)-P(b∩C)+ P(ABC)=1/4+1/4+1/4-0...