In a Carnival Shell Game, a Contestant Can Win a Prize

Question 94

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In a carnival shell game, a contestant can win a prize by guessing which one of 5 identical walnut shells is covering a small marble.After each guess, the shells are randomly shuffled outside the view of the contestant.If a person plays the carnival game 4 times, what is the probability he or she wins a prize exactly 2 times? In a carnival shell game, a contestant can win a prize by guessing which one of 5 identical walnut shells is covering a small marble.After each guess, the shells are randomly shuffled outside the view of the contestant.If a person plays the carnival game 4 times, what is the probability he or she wins a prize exactly 2 times?

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