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The process of dividing members of the population into homogeneous subgroups before sampling is______.
The process of dividing members of the population into homogeneous subgroups before sampling is______.
admin
2012-12-01
11
问题
The process of dividing members of the population into homogeneous subgroups before sampling is______.
选项
A、random sampling
B、stratified sampling
C、systematic sampling
D、simple sampling
答案
C
解析
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0
专业英语八级
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