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PROBABILITY & COMPLEMENTS #3 - Math Worksheets

event. The probability of an event and the complement of that event will always add up to a total of 1. For the problems below, find the probability of each event described and the probability of its complement. Example: Flipping a coin 10 times and landing on tails 7 times. P (tails) = 7/10 P( heads) = 3/10