题目内容
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题目材料：
Two organizations will be selected at random, one at a time and without replacement, from the 30 organizations. Approximately what is the probability that the age of the vice president of at least one of the two organizations will be at least 1 year greater than the age of the corresponding president?
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A0.35
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B0.45
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C0.50
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D0.55
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E0.65
E显示答案
