P(AB)=P(A)P(B)P(A非B)=P(B)-P(AB)=P(B)-P(A)P(B)=(1-P(A))P(B)=P(A非)P(B)所以A非与B独立P(AB非)=P(A)-P(AB)=P(A)-P(A)P(B)=(1-P(B))P(A)=P(A)P(B非)所以A与B非独立P(A非B非)=P(A非)-P(A非B)=P(A非)-P(A非)P(B)=(1-P(B))P(A非)=P(A非)P(B非)所以A非与B非独立