1.

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 P(u_(i))=c, where c is a constant, then P(u_(n)//W) is equal to

Answer»

`(2)/(n+1)`
`(1)/(n+1)`
`(n)/(n+1)`
`(1)/(2)`

SOLUTION :`P(u_(n))/(W)=((n)/(n+1))/((Sigmai)/(n+1))=(2)/(n+1)`


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