Also found in: Thesaurus, Wikipedia.
Switch to new thesaurus
|Noun||1.||proportional sample - the population is divided into strata and a random sample is taken from each stratum|
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.