A Sample is a selection of data chosen from all of that possibly available. Sampling is needed in almost all forms of data collection as in most research processes it is simply not possible to gain data from every available source. For example, if one wished to conduct some interviews within a town it would not be possible to interview. Absolutely every resident of that town. Instead, a selection of the population would-be used to try to get a representation of the town’s answers. The method you use to select this sample is known as your Sampling Technique.
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