题目信息
The probability that event A occurs is 0.4, and the probability that events A and B both occur is 0.25. If the probability that either event A or event B occurs is 0.6, what is the probability that event B will occur?
A:0.05
B:0.15
C:0.45
D:0.50
E:0.55
参考答案及共享解析

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已选答案:
正确答案:
C:0.45
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题目来源
Magoosh