Replacement from a box of numbered tickets
200 draws are made with replacement from a box of numbered tickets; these tickets are labeled either -2 or 3. Is it possible for the expected value of the sum to be 50? Justify your answer.
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In a game of chance, a number of draws are made with replacement from a box of tickets; 500 of these tickets are labeled ?1 and 450 of these tickets are labeled 1, and the winnings are equal to the sum of draws. Determine whether 50 draws or 500 d
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