NO.PZ2021062201000013
问题如下:
Which one of the following statements is true about non-probability sampling?
选项:
A.There is significant risk that the sample is not representative of the population.
Every member of the population has an equal chance of being selected for the sample.
C.Using judgment guarantees that population subdivisions of interest are represented in the sample.
解释:
A is correct. Because non-probability sampling is dependent on factors other than probability considerations, such as a sampler's judgment or the convenience to access data, there is a significant risk that non-probability sampling might generate a non-representative sample
由于非概率抽样取决于概率考虑以外的因素,例如抽样者的判断或访问数据的便利性,因此非概率抽样可能产生非代表性样本的风险很大