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2个英语问题,翻译并解答
1.IfAandBare2independenteventsandP(A)=0.9andP(notB)=0.2,findP(notAorB).2.Consider2ind...
1.If A and B are 2 independent events and P(A)=0.9 and P(not B)=0.2,find P(not A or B).
2.Consider 2 independent events A and B. If P(A)=0.85 and P(B')=0.35,find P(A' and B). 展开
2.Consider 2 independent events A and B. If P(A)=0.85 and P(B')=0.35,find P(A' and B). 展开
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A B是2个独立事件,P(A)=0.9,P(B拔)=0.2,求P(A拔 或 B)
P(A拔 U B)=1-0.9×0.2=0.82
考虑2个独立事件A B,P(A)=0.85,P(B拔)=0.35,求P(A拔 与 B)
P(A拔 与 B)=(1-0.85)×(1-0.35)=0.0975
P(A拔 U B)=1-0.9×0.2=0.82
考虑2个独立事件A B,P(A)=0.85,P(B拔)=0.35,求P(A拔 与 B)
P(A拔 与 B)=(1-0.85)×(1-0.35)=0.0975
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