设A,B为随机事件,求解下列各题:-|||-(1)已知 (A)=0.7, P(A-B)=0.3-|||-__ __-|||-求 (overline (A)cup overline (B));-|||-(2)已知 (A)=0.3,-|||-(AB)=P(overline (AB)), 求P(B);-|||-__-|||-(3)已知 (A)=P(B)=dfrac (1)(3),-|||-(A|B)=dfrac (1)(6), 求P (A|B);-|||-__ __-|||-(4)已知 (A)=0.5, (B)=0.4,-|||-(A|overline (B))=0.6, 求 (A|Acup overline (B))

设 A, B 为两个事件，且 P(A) = 0.7，P(A-B) = 0.3，求 P(overline(AB))。 设 A, B 为两个事件，且 $P(A) =

4【填空题】设A,B为随机事件，P(A)=0.7，P(A-B)=0.3，则P(overline(AB))=____4【填空题】设A,B为随机事件，P(A)=0.

设P（A）=0.7，P（A-B）=0.3，则P（overline(AB)）= ____ ．设P（A）=0.7，P（A-B）=0.3，则P（$\overline{

5.设A,B,C为三个随机事件,且 (overline (A)cup overline (B))=0.8 (overline (A)cup overline (

设A，B，C为三个事件，且P(overline(A)cup overline(B))=0.9，P(overline(A)cup overline(B)cup o

设随机事件A,B相互独立, P(A)=0.2 ,P(B)=0.5 ,则 (overline (A)cup overline (B))=() .

设事件A与B互不相容, P(A)=0.4 ,P(B)=0.3 ,则-|||-(overline (A)overline (B))= __ , (overline

设事件A与B互不相容, P(A)=0.4 ,P(B)=0.3 ,则-|||-.(overline (A)overline (B))= __ , (overlin

4.设A,B为两个随机事件,且 (A)=0.7, (A-B)=0.3, 则 (overline (AB))= __

(3)设A,B为随机事件, (A)=0.6, (A-B)=0.3, 则 (overline (AB))= __