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In: Statistics and Probability

An urn contains red and green colored balls. You draw a sample of five balls from...

An urn contains red and green colored balls. You draw a sample of five balls from the urn.

(a) Suppose the urn contains 18 balls, half of which are red. What is the probability that the sample contains a red ball?

(b) Suppose the urn contains 144 balls, half of which are red. What is the probability that the sample contains a red ball?

(c) Suppose the urn contains 144 balls, 10 of which are red. What is the probability that the sample contains a red ball?

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