Assertion (A) : Two players, Sania and Ashnam play a tennis match. The probability of Sania winning the match is 0·79 and that of Ashnam winning the match is 0·21. Reason (R) : The sum of probabilities of two complementary events is 1.

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Assertion-ReasonComplementary 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 :

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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