advantages of sampling methods in mining pdf



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Quota sampling

Quota sampling method is a non-probability sampling and it can be defined as a sampling method of gathering representative data from a group Application of quota sampling ensures that sample group represents certain characteristics of the population chosen by the researcher...

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Statistics

Multistage sampling - In such case, combination of different sampling methods at different stag For example, at first stage, cluster sampling can be used to choose clusters from population and then sample random sampling can be used to choose elements from each cluster for the final sample...

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Cluster Sampling

Advantages of Cluster Sampling The cluster method comes with a number of advantages over simple random sampling and stratified sampling The advantages include: 1 Requires fewer resourc Since cluster sampling selects only certain groups from the entire population, the method requires fewer resources for the sampling process...

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