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If A and B are independent events such that P(A) = p, P(B) = 2p and P(Exactly one of A, B) = 59, then p = ______.

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Question

If A and B are independent events such that P(A) = p, P(B) = 2p and P(Exactly one of A, B) = `5/9`, then p = ______.

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Solution

If A and B are independent events such that P(A) = p, P(B) = 2p and P(Exactly one of A, B) =`5/9`, then p = `1/3, 5/12`.

Explanation:

p = `1/3, 5/12`  ....`[(1 - "p")(2"p") + "p"(1 - 2"p") = 3"p" - 4"p"^2 = 5/9]`

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Chapter 13: Probability - Solved Examples [Page 270]

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NCERT Exemplar Mathematics Exemplar [English] Class 12
Chapter 13 Probability
Solved Examples | Q 18 | Page 270

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