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Last updated at Feb. 15, 2020 by Teachoo
Transcript
Ex 13.4, 11 Two dice are thrown simultaneously. If X denotes the number of sixes, find the expectation of X.Let X be the number of sixes occur So, value of X can be 0, 1 or 2 Total number of possible outcomes = 36 So, our probability distribution is The Expectation of X is given by E(X) = ๐=โ_(๐=1)^๐โ๐ฅ๐๐๐ = 0 ร 25/36+1 ร 10/36+2 ร 1/36 = 10/36+2/36 = 12/36 = ๐/๐
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Ex 13.4, 10 Not in Syllabus - CBSE Exams 2021
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