An urn contains m white and n black balls. A ball is drawn at random and is put back into the urn along with k balls of the same colour as that of the ball drawn. a ball is again drawn at random. Show that the probability of drawing a white ball now does not depend on k.

Explanation

Given,` U =` {m white, n black balls}


`E_1 =` {First ball drawn of white colour}



`E_2 =` {First ball drawn of black colour}



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