P(A)=0.7P(A-B)=0.4,则P(AB)= 答案网 2021-06-07 阅读(8) P(A)=0.7P(A-B)=0.4,则P(AB)= 问题描述:P(A)=0.7P(A-B)=0.4,则P(AB)=最佳答案: P(AB)=P(A)-P(A-B)=0.7-0.4=0.3