A .O
B .1
C .-1
D .10
[单选题]当A=1,B=1时,A与B的逻辑与为P=A•B:()。A .OB .1C .-1D .10
[单选题]当A=1,B=1时,A与B的或运算为P=A+B为()A .OB .1C .-1D .10
事件A,B为对立事件,则P(AB) = ( ) A 1-P(A) B P(A+B) C 1 D 0事件A,B为对立事件,则P(AB)=()A1-P(A)BP(A
[单选题]设A与B为随机事件,则P(AB)可表示为________。A.P(A)P(B)B.1-P(A)P(B)C.P(B)P(A|B),P(B)>0D.P(A)P(A|B)
(1)设事件A与B相容,则有 ()-|||-(A) (Acup B)=P(A)+P(B);-|||-(B) (Acup B)=P(A)+P(B)-P(AB);-
[单选题]当A=0,B=1时,为()A .0B .1C .不确定
[单选题]当A为真,B未知,它们做“与”运算的结果()。A .为真B .为假C .为真或假D .不能做运算
6.设A,B,C为事件, (AB)gt 0 ,且 P(C|AB)=1 ,则 ()-|||-
若A与B互为对立事件,则P(AB)=0A. 正确B. 错误
(A)P(overline(AB))=0; (B)P(AB)=P(A.)P(B.); (C.)P(A)=1-P(B); (D.)P(overline(A)c