A simple random sample is a subset of a statistical population where each member of the population is equally likely to be chosen.

Network sampling Other methods for surveying small populations are snowball sampling or respondent-driven sampling. In these approaches, respondents are selected from a social network of existing ...

A sampling error is a statistical error that occurs when a sample does not represent the entire population. See how to avoid sampling errors in data analysis.

Using pooled samples to characterize populations is not only more cost-efficient, but also in some cases it can lead to more precise and less biased parameter estimation than that occurs with ...

A single sample of individuals from the population, those on list K, together with the identification of the list on which they last appeared prior to list K is obtained. Under relatively weak ...