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ZX-B28121DCF5Bluebook试题11 · 第 12 题
Bluebook试题11 · 原库模块 3 · Q12 原库参考解析
Set K consists of all the positive integers that are less than or equal to 160, where none of the integers are repeated. If a number is selected at random from set K, what is the probability of selecting a number that is even and less than or equal to 50?
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