Examlex
A group cannot be considered a nation unless its members have a sense of community.
Self-Selected Samples
A sample in which the participants have volunteered themselves, which may lead to bias and unrepresentative samples.
Stratified Random Samples
A sampling method that involves dividing the population into subgroups (strata) and randomly selecting samples from each stratum, aiming to ensure representation of key subgroups.
Cluster Samples
A sampling technique where the population is divided into groups, or clusters, and a random sample of these groups is selected to be surveyed or studied.
Target Population
The entire group about which a researcher wishes to make conclusions based on a statistical study.
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