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Comment on How odd is a cluster of plane accidents?parent

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No, because if a crash occurs on both Day 1 and Day 2, then the next crash was on Day 1. The probability of a crash occurring on each day is the same, but the probability of the next crash occurring is higher for earlier days.

I agree with you, but I am not sure about this:

P(A) * P(Not A) * P(Not A) = P(Not A) * P(Not A) * P(A)

P(A) > P(Not A) * P(Not A) * P(A)

Also, of course these are not independent events: if a plane has an accident for some reason, all the future flights take extra measures to avoid the problem that caused the accident and other related problems.

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