IIT JEE Advanced 2006 Paper 1
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Paragraph for Questions 107–109:
There are n urns each containing (n + 1) balls such that the ith urn contains i white balls and (n + 1 – i) red balls. Letu i be the event of selecting ith urn, i = 1, 2, 3, …, n and W denotes the event of getting a white ball.
There are n urns each containing (n + 1) balls such that the ith urn contains i white balls and (n + 1 – i) red balls. Let
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Question : 109 of 120
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If n is even and E denotes the event of choosing even numbered urn ( P ( u i ) =
) , then the value of P(W/E) is
[JEE Adv 2006 P1]
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