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In a class, 40% of the students participated in Mathematics-quiz, 30% in Science quiz and10% in both the quiz programmes. If a student is selected at random from the class, find the probability that the student participated in Mathematics or Science or both quiz programmes. |
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Answer» P(AuB) = P(A)+ P(B)-P( AAND B) = .4+.3-.1 = .6 = 60% |
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