题目
设 A, B 为随机事件，且 0 A. P(overline(B) mid overline(A)) = 1B. P(B mid A) = 1C. P(overline(B) mid A) =1D. P(A cup B) = 1
设 $A, B$ 为随机事件，且 $0 < P(A) < 1$，$0 < P(B) < 1$，$P(A \mid B) = 1$，则必有（）
A. $P(\overline{B} \mid \overline{A}) = 1$
B. $P(B \mid A) = 1$
C. $P(\overline{B} \mid A) =1$
D. $P(A \cup B) = 1$
题目解答
答案
A. $P(\overline{B} \mid \overline{A}) = 1$