Simple Random Sampling|representative sample|probability sampling|simple random sampling with replacement| simple random sampling without replacement|Random-Number Tables
1.2 Simple Random Sampling
Census, :全部信息
Sampling:
抽样方式:
representative sample:有偏向,研究者选择自己觉得有代表性的sample
probability sampling:使用随机数表不用研究者来抽样,较为客观(研究者可以选择自己觉得有代表性和没有代表性的sample)
simple random sampling.
simple random sampling with replacement, whereby a member of the population can be selected more than once;
the other is simple random sampling without replacement, whereby a member of the population can be selected at most once
不加说明情况下,simple random sampling特指without replacement (不放回)
Random-Number Tables

最后选出:


Experimentation:
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