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This problem sounds really easy, but I think I am doing something wrong.

Question :

If the mean time between some random event occuring is 6 months, what is the probablity that in one year the event does not happen.

I think its like flipping a coin. There is a 0.5 chance of the event NOT happening in 6 months, so there is 0.5 x 0.5 chance of it not happening in 1 year, so P = 0.25.

Does this sound right?

Thanks

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# Basic stats questions

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