What is the probability that event E or event F or both will occur? (1) The probability that event E will occur is 0.6. (2)   The probability that event F will occur is 0.4._出国考试答疑器_GMAT

What is the probability that event E or event F or both will occur?

(1) The probability that event E will occur is 0.6.

(2) The probability that event F will occur is 0.4.

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请问May老师，此题已有的解答说需要考虑是否为独立事件，印象中做概率题都没有特别考虑过这个问题，所以想问问什么情况下需要考虑是否为独立事件呢？谢谢。

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选了c，觉得概率是1啊，就一定会发生一个

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