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声明:"在简单随机抽样中,每个个体有相同的被选中概率。这等价于说每个 n 个个体的集合有相同的概率成为样本。"这个声明正确吗?
声明:"在简单随机抽样中,每个个体有相同的被选中概率。这等价于说每个 n 个个体的集合有相同的概率成为样本。"这个声明正确吗?
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