Are statistical values based on a complete survey of the entire population or on a sample of it?

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Statistical values can be based on either a complete survey of the entire population or a sample of it depending on the research question, feasibility, and resources available. In some cases, it might be feasible and appropriate to survey and collect data from the entire population, but in most cases, it is more practical to use a sample since it saves time, money, and resources. The choice between using a complete survey or a sample depends on various factors such as population size, homogeneity or heterogeneity, distribution, variability, and sampling methods. Therefore, there is no universal rule or threshold for when a complete survey or sample is used.

Are Statistical Values Based on a Complete Survey of the Entire