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A new company has made the claim that its test preparation will improve SAT scores by 50 points. A skeptical educational psychologist has decided to test this theory, and has enlisted 40 students...

1. Two persons, A and B, are to play a serious of independent games, with A’s winning probability in each game = p and B’s winning probability = q = 1 – p. The game ends when the total number of winnings...

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