Independent events (trails)
Example of independent events: Rollinga single die twice. The result on the second roll is independent ofthe first.
Example of events not independent: Picking twocards from a deck, one at a time, without replacement. (If you pick acard, and don't put it back in the deck and reshuffle, then theprobability of a red card on the second pick is dependent upon whatthe first card happened to be.)
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