A basic principle of probability sampling is that a sample will be representative of the population from which it is drawn if _____.

Question

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A sample will be representative of the population from which it is drawn only when all members of the population have an equal chance of being selected for the sample. This principle is the foundation of probability sampling, which ensures that the sample is unbiased and that each member of the population has an equal chance of being included in the sample.

A Basic Principle of Probability Sampling Is That a Sample