Is obtained by dividing the population into homogeneous groups and randomly selecting individuals from each group.

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24-08-2022
Biology

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Is obtained by dividing the population into homogeneous groups and randomly selecting individuals from each group.

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Tutorconsortium347 Tutorconsortium347 · Answer 1 · 2022-08-30T14:21:29+02:00

A stratified sample is obtained by dividing the population into homogeneous groups and randomly selecting individuals from each group.

Why stratified sampling is used for dividing the population into homogeneous groups?

The stratified sampling is used to divide the homogeneous population because the stratified sampling approach produces homogenous strata in which all the members share a common attribute, it is used to split the homogeneous population. Clusters of the same size are formed using the cluster sampling technique, however these groupings is heterogeneous and not chosen based on a shared characteristic. Moreover, when populations have a diversity of characteristics, stratified random sampling performs well; nevertheless, it is useless if subgroups cannot be created. In comparison to the straightforward random sampling method, stratification provides a lesser estimation error and improved precision.

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