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Ex12.45 We have a deck of 52 cards. a) We randomly choose 5 cards (without repetition)...

Ex12.45 We have a deck of 52 cards. a) We randomly choose 5 cards (without repetition) and get 5 euros for any ace or king chosen; b) We randomly choose 5 cards (with repetition, that is, we choose a card and return it to the deck before the next choosing) and get 5 rubles for any ace or king chosen. What are the fair stakes for the games? Calculate expectation?

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