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Balls are randomly removed from an urn that initially contains 20 red and 10 blue balls.

(a) What is the probability that all of the red balls are removed before all of the blue ones have been removed?

Now suppose that the urn initially contains 20 red, 10 blue, and 8 green balls.

(b) Now what is the probability that all of the red balls are removed before all of the blue ones have been removed?

(d) What is the probability that the group of blue balls is the first of the three groups to be removed?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91019465

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