Statistics Dictionary

To see a definition, select a term from the dropdown text box below. The statistics dictionary will display the definition, plus links to related web pages.

Select term:

Random Sampling

Random sampling is a procedure for sampling from a population in which (a) the selection of a sample unit is based on chance and (b) every element of the population has a known, non-zero probability of being selected.

Random sampling helps produce representative samples by eliminating voluntary response bias and guarding against undercoverage bias. Probability sampling methods rely on random sampling.

See also:   Bias in Survey Sampling