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Problem 3: An urn contains 50 marbles(35 green and 15 white). (a)15 marbles are selected without replacement. Find the probability that exactly 10 out of 15 selected are green. (b) 2 marbles are selected without replacement. Find the probability that 1 green and 1 white is obtained. (c) Can you solve part (a) and part (b) by using binomial distribution? And why?

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