Question : One bag contains 4 white balls and 2 black balls; another contains 3 white balls and 5 black balls. If one ball is drawn from each bag, find the probability that (i) both are white , (ii) one is white and one is black.

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Pr(X = white ball from bag 1) = \frac{4}{6}

Pr(X = white ball from bag 2) = \frac{3}{8}