A sample is any subset of the total population. A representative sample is one that is chosen so that its characteristics are similar to that of the population.
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A representative sample is a randomly selected subset of the population.
What is the difference between the population and sample regression functions? Is this a distinction without difference?
random sample is a big sample and convenience sample is small sample
Population distribution refers to the patterns that a population creates as they spread within an area. A sampling distribution is a representative, random sample of that population.
A simple random sample.