设A,B是两随机事件,且0_其他解答

设A,B是两随机事件,且0

人气：456 ℃　时间：2020-03-27 03:18:00

解答

P(A的逆|B的逆）+P(A|B )=P(A的逆交B的逆）/P(B的逆）+P(AB )/P(B)=[1-P(A并B）]/[1-P(B）]+P(AB )/P(B)=[1-P(A)-P(B)+P(AB)]/[1-P(B）]+P(AB )/P(B)=1+[P(AB)-P(A)]/[1-P(B)]+P(AB )/P(B)=1所以[P(AB)-P(A)]/[1-P(B...