Random Sample 1


Random Sample 1 : (a) A sample that is arrived at by selecting sample units such that each possible unit has a fixed and determinate probability of selection. [Last, 1983: A Dictionary of Epidemiology]; (b) A sample selected from a statistical population such that each individual has an equal probability of being selected. [USEPA, 1992: GL for Exposure Assessment] [USEPA, 1997b: Exposure Factors Handbook]
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