I want to create an algorithm to calculate the OR of n independent events, anyone can help me?
Calculating probability of 'at least one event occurring' for n independent events
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probability
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1Hint: Use DeMorgan's laws and resolutely refuse to use FOIL. See [this answer](http://math.stackexchange.com/a/66488/15941) and the comments following it. – 2012-11-09