| 释义 |
representative sample
Thesaurus| Noun | 1. | representative sample - the population is divided into strata and a random sample is taken from each stratumproportional sample, stratified samplestatistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameterssample distribution, sampling, sample - items selected at random from a population and used to test hypotheses about the population |
representative sample
representative sample[¦rep·ri¦zen·təd·iv ′sam·pəl] (mining engineering) In testing or valuation of a mineral deposit, a sample so large and average in composition as to be considered representative of a specified volume of the surrounding ore body. (statistics) A sample whose characteristics reflect those of the population from which it is drawn. representative sample a SAMPLE which is (or is assumed to be) a true reflection of the parent population, i.e. has the same profile of attributes, e.g. age structure, class structure, educational background. A representative sample is achieved by ensuring that its selection is entirely random (see RANDOM SAMPLE). It is essential that a sample is representative in order that the conclusions drawn from its study can be accepted as valid information about the parent population. See also SAMPLING ERROR, SAMPLING FRAME, PROBABILITY.Representative sample
Representative sampleA random sample of people that adequately represents the test-taking population in age, gender, race, and socioeconomic standing.Mentioned in: Psychological Tests, Stanford-Binet Intelligence Scales, Wechsler Intelligence Testrepresentative sample
Related to representative sample: Sample sizeSynonyms for representative samplenoun the population is divided into strata and a random sample is taken from each stratumSynonyms- proportional sample
- stratified sample
Related Words- statistics
- sample distribution
- sampling
- sample
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