SOLUTION: An urn contains four black balls and six white balls. What is the probability of getting one black and one white ball in two consecutive draws from the urn?
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Question 1040103: An urn contains four black balls and six white balls. What is the probability of getting one black and one white ball in two consecutive draws from the urn?
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Probability of first is 4/10*6/9=2/5 *2/3=4/15
probability of second is 6/10*4/9=3/5*4/9=4/15
we add them 8/15 is the answer.