stratum sample
Смотреть что такое "stratum sample" в других словарях:
Sample size determination — is the act of choosing the number of observations to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample … Wikipedia
Sample size — The sample size of a statistical sample is the number of observations that constitute it. It is typically denoted n , a positive integer (natural number).Typically, all else being equal, a larger sample size leads to increased precision in… … Wikipedia
proportional sample — noun the population is divided into strata and a random sample is taken from each stratum • Syn: ↑stratified sample, ↑representative sample • Topics: ↑statistics • Hypernyms: ↑sample distribution, ↑sample, ↑ … Useful english dictionary
representative sample — noun the population is divided into strata and a random sample is taken from each stratum • Syn: ↑stratified sample, ↑proportional sample • Topics: ↑statistics • Hypernyms: ↑sample distribution, ↑sample, ↑ … Useful english dictionary
stratified sample — noun the population is divided into strata and a random sample is taken from each stratum • Syn: ↑representative sample, ↑proportional sample • Topics: ↑statistics • Hypernyms: ↑sample distribution, ↑sample, ↑ … Useful english dictionary
stratified random sample — Statistics. a random sample of a population in which the population is first divided into distinct subpopulations, or strata, and random samples are then taken separately from each stratum. * * * … Universalium
stratified random sample — a stratified sample in which random samples are chosen within each stratum. Sometimes called stratified s … Medical dictionary
stratified random sample — Statistics. a random sample of a population in which the population is first divided into distinct subpopulations, or strata, and random samples are then taken separately from each stratum … Useful english dictionary
Sampling (statistics) — Sampling is that part of statistical practice concerned with the selection of individual observations intended to yield some knowledge about a population of concern, especially for the purposes of statistical inference. Each observation measures… … Wikipedia
Balanced repeated replication — is a statistical technique for estimating the sampling variability of a statistic obtained by stratified sampling. Outline of the technique # Select balanced half samples from the full sample. # Calculate the statistic of interest for each half… … Wikipedia
Stratified 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 … Wikipedia