Examlex
Discuss the contributions that James Q.Wilson, George L.Kelling, and Wesley G.Skogan made to the concept of community policing.
Convenience Sample
A non-random sample drawn from a part of the population that is close to hand or easy to access, often leading to biases.
Random Selection
The process of choosing a sample from a population in such a way that each member has an equal probability of being chosen.
Random Sample
A sample drawn from a population where every member had an equal opportunity to be selected.
Sample Mean
The average of all the values in a sample, used as an estimate of the population mean.
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