Probability of happening of an event is denoted by p and probability of non-happening of the event is denoted by q. Relation between p and q is

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MCQ (Single)Complementary Events in ProbabilityCBSE PYQ

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If the probability of a player winning a game is 0.79, then the probability of his losing the same game is :

MCQ (Single)Complementary Events in ProbabilityProbability of Complementary Events

In an experiment of throwing a die, Assertion (A) : Event E₁ : getting a number less than 3 and Event E₂ : getting a number greater than 3 are complementary events. Reason (R) : If two events E and F are complementary events, then P(E) + P(F) = 1.

Assertion-Reason