A ball is drawn from an urn containing three white and three black balls. After the ball is drawn, it is then replaced and another ball is drawn. This goes on indefinitely. What is the probability that of the first four balls drawn, exactly two are white?
Added by Jennifer W.
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Since there are 3 white balls and 3 black balls in the urn, the probability of drawing a white ball is: \[ P(\text{White}) = \frac{3}{6} = \frac{1}{2} \] Show more…
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