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<p>设 A、B为随机变量,P (A)=a,P (B)=b,P(A+ B)=c,则<img alt="" src="ht
分类: 数学2 (军队文职)
发布时间: 2023-11-03 09:29
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设 A、B为随机变量,P (A)=a,P (B)=b,P(A+ B)=c,则
为:
A.a-b
B.c-b
C.a(1-b)
D.a(1-c)
正确答案是B
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