A.P = (A AND B) AND (A OR B)
B.P = A XOR B
C.P = NOT (A AND B) AND (A AND B)
D.P = (A OR B) AND (A AND (NOT B))
- · 有7位网友选择 C,占比63.64%
- · 有2位网友选择 B,占比18.18%
- · 有1位网友选择 A,占比9.09%
- · 有1位网友选择 D,占比9.09%
A.P = (A AND B) AND (A OR B)
B.P = A XOR B
C.P = NOT (A AND B) AND (A AND B)
D.P = (A OR B) AND (A AND (NOT B))
设A、B为两随机事件,且B⊂A,则下列式子正确的是( ).
A.P(A+B)=P(A) B.P(AB)=P(A)
C.P(B|A)=P(B) D.P(B-A)=P(B)-P(A)
A、P(B∣A)=0.5
B、P(B-A)=0.1
C、P(A-B)=0.1
D、P(B∣A)=0.75
E、P(B-A)=0.3
F、P(B∣A)=1
设A与B是两个随机事件,已知P(A)=0.4, P(B︱A)=0.4,=0.5, 则P(B)=0.9.
设A、B两随机事件满足P()=0.7,P(AB)=0.2,则P(A-B)=( )。 A. 0.1 B. 0.2 C. 0.3 D. 0.4
A、A
B、B
C、C
D、D
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