Use the given probability of each event to find the probability of the complement. P(red) = 25% p(not red) = p(not green) = 2/3 p(green) =.

Use the given probability of each event to find the probability of the complement. P(red) = 25% p(not red) = p(not green) = 2/3 p(green) =.

Complementary Event: –Complementary eventsinprobabilityoccur when only two outcomes are possible. For example, passing a test or not passing a test. An event can be described as thesetofoutcomesof an experiment. Thus, events will always be asubsetof the sample space.sum of probabilities of complementary events must be equal to 1.Complementary events can take place only when there are exactly two outcomes.Complementary EventsExampleWe can generally state that: P(A) + P(A ’ ) = 1eventof drawing a green card = 1/3Complementary event: