[单选题] 提问人:匿名网友 提问时间:2021-08-22

A publishing company is conducting research into the nation’s reading habits. It randomly selects a number of locations from around the country and then interviews everyone who lives in these locations.What is this approach to sampling known as?


A .Cluster sampling
B .Quota sampling
C .Stratified sampling
D .Systematic sampling

提问人:匿名网友 提问时间:2021-08-22

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