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There are n urns each continuous (n+1) b...

There are n urns each continuous (n+1) balls such that the ithurn contains 'I' white balls and (n+1-i) red balls. Let `u_(1)` be the event of selecting ith urn, i=1,2,3……..n and W denotes the event of getting a white balls.
If n is even and E dentes the event of choosing even numbered urn`[P(u_(i))=(1)/(n)]`, then the value of `P(W//E)` is

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