[题目]设A,B是两事件,已知 (A)=dfrac (1)(4) (B)=-|||-1/2, (AB)=dfrac (1)(8), 求 (Acup B)(overline {AB))}

2.设A,B是两个事件,已知 P(A)=1/4 (B)=1/2, (AB)=1/8, 求 (Acup B),-|||-P(AB),P(AB ), [ (Acup

[题目]已知 (A)=dfrac (1)(2)-|||-(1)若A,B互不相容,求P(AB);-|||-(2)若 (AB)=dfrac (1)(8) 求P(AB

(5)设 (A)=dfrac (1)(3), (B)=dfrac (1)(4), (Acup B)=dfrac (1)(2), 则 (overline (A)c

2.设A,B为两个事件,且 (A)=dfrac (1)(4), (B|A)=dfrac (1)(3), (A|B)=dfrac (1)(2), 求 (Acup

1.已知 为两个随机事件,且 (A)=dfrac (1)(2) , (B)=dfrac (3)(5) , (B|A)=dfrac (4)(5), 求:-|||-

3.设A,B是两个事件,且 (A)=dfrac (1)(3), (B)=dfrac (1)(2), 试在下列三种情况下,求P(AB),-|||-(1) (AB)

19.设A,B为两个随机事件,且 (A)=dfrac (1)(3), (B|A)=dfrac (1)(4), (A1B)=dfrac (1)(2) 则-|||-

(B|A)=dfrac (1)(3) . (A|B)=dfrac (1)(2), 求 (Acup B).

[题目]设A.B.C为三个事件,且 (A)=P(B)=dfrac (1)(4),-|||-(C)=dfrac (1)(3), P(AB)=P(BC)=0 (AC

随机事件 A,B 满足 (A)=P(B)=dfrac (1)(2), 且 (Acup B)=1, 则 (overline (A)cup overline (B)