Three events: A1, A2 and B are given. We know that A1 and A2 are disjointed events. P(A1)>0 and P
問題詳情
Three events: A1, A2 and B are given. We know that A1 and A2 are disjointed events. P(A1)>0 and P(A2)>0.Let P(B|A1)= P(B|A2)=0.2. Please find P(B|A1UA2).