搜题

问题更新时间2023/4/3 12:59:00

类型随机抽样的优点有（）

A.能使样本在总体的分布比较均匀
B.按各类型的分布特征确定样本，增强样本对总体的代表性
C.提高了样本指标推断总体指标的抽样的精确度
D.有利于了解总体各类别的情况

答案

参考答案：ABCD

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