stratified sampling
1stratified sampling — UK US noun [U] MARKETING ► the activity of dividing a large group of people into smaller groups based on age, sex, social class, etc. in order to find out more about the opinions of the whole group: »Stratified sampling can be used when the… …
2Stratified sampling — In statistics, stratified sampling is a method of sampling from a population.When sub populations vary considerably, it is advantageous to sample each subpopulation (stratum) independently. Stratification is the process of grouping members of the …
3stratified sampling — A sampling procedure in which a population is divided into two mutually exclusive and collectively exhaustive strata and a probability sample is drawn from each stratum. See also disproportionate stratified sampling …
4stratified sampling — sluoksninis ėmimas statusas T sritis Standartizacija ir metrologija apibrėžtis Ėmimas, kurio metu ėminiai atrenkami iš skirtingų tiriamosios visumos sluoksnių. atitikmenys: angl. stratified sampling vok. geschichtete Stichprobenentnahme, f rus.… …
5stratified sampling — sluoksninis ėmimas statusas T sritis chemija apibrėžtis Ėminių ėmimas iš skirtingų tiriamosios visumos sluoksnių. atitikmenys: angl. stratified sampling rus. расслоенный отбор проб …
6Stratified sampling — The selection of a *sample of data from a *population that has been arranged into groups according to a defined trait or attribute. See also judgmental sampling, *random sampling, and *statistical sampling …
7stratified sampling — noun the population is divided into subpopulations (strata) and random samples are taken of each stratum • Syn: ↑representative sampling, ↑proportional sampling • Hypernyms: ↑sampling …
8disproportionate stratified sampling — A sampling method in which the size of the sample drawn from a particular stratum is not proportional to the relative size of that stratum. For example, a stratum could be large supermarkets, which may only account for 20% of all grocery stores… …
9proportionate stratified sampling — A probability sampling method in which different strata in a population are identified and in which the number of elements drawn from each stratum is proportionate to the relative number of elements in each stratum. Compare disproportionate… …
10Stratified sampling approach to indexing — An approach in which the index is divided into cells, each representing a different characteristic of the index, such as duration or maturity. The New York Times Financial Glossary …
