5. An urn contains five red and three greens balls. The balls are chosen at random,...

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5. An urn contains five red and three greens balls. The balls are chosen at random, one by one, from the urn. If a red ball is chosen, it is removed. If a green ball is chosen, it is returned to the urn. The process continues until all of the red balls are removed from the urn. What is the expected duration of the game? 5. An urn contains five red and three greens balls. The balls are chosen at random, one by one, from the urn. If a red ball is chosen, it is removed. If a green ball is chosen, it is returned to the urn. The process continues until all of the red balls are removed from the urn. What is the expected duration of the game?