What does stratified sampling mean?
Definitions for stratified sampling
strat·i·fied sampling
This dictionary definitions page includes all the possible meanings, example usage and translations of the word stratified sampling.
Princeton's WordNet
stratified sampling, representative sampling, proportional samplingnoun
the population is divided into subpopulations (strata) and random samples are taken of each stratum
Wikipedia
Stratified sampling
In statistics, stratified sampling is a method of sampling from a population which can be partitioned into subpopulations. In statistical surveys, when subpopulations within an overall population vary, it could be advantageous to sample each subpopulation (stratum) independently. Stratification is the process of dividing members of the population into homogeneous subgroups before sampling. The strata should define a partition of the population. That is, it should be collectively exhaustive and mutually exclusive: every element in the population must be assigned to one and only one stratum. Then simple random sampling is applied within each stratum. The objective is to improve the precision of the sample by reducing sampling error. It can produce a weighted mean that has less variability than the arithmetic mean of a simple random sample of the population. In computational statistics, stratified sampling is a method of variance reduction when Monte Carlo methods are used to estimate population statistics from a known population.
Wikidata
Stratified sampling
In statistics, stratified sampling is a method of sampling from a population. In statistical surveys, when subpopulations within an overall population vary, it is advantageous to sample each subpopulation independently. Stratification is the process of dividing members of the population into homogeneous subgroups before sampling. The strata should be mutually exclusive: every element in the population must be assigned to only one stratum. The strata should also be collectively exhaustive: no population element can be excluded. Then simple random sampling or systematic sampling is applied within each stratum. This often improves the representativeness of the sample by reducing sampling error. It can produce a weighted mean that has less variability than the arithmetic mean of a simple random sample of the population. In computational statistics, stratified sampling is a method of variance reduction when Monte Carlo methods are used to estimate population statistics from a known population.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of stratified sampling in Chaldean Numerology is: 7
Pythagorean Numerology
The numerical value of stratified sampling in Pythagorean Numerology is: 4
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"stratified sampling." Definitions.net. STANDS4 LLC, 2024. Web. 8 May 2024. <https://www.definitions.net/definition/stratified+sampling>.
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