A sample consists of all items of interest in a statistical problem,whereas a population is a subset of the population.We calculate a parameter to make inferences about the unknown sample statistic.

Question

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The definition provided is incorrect. A population is actually the entire group of items of interest in a statistical problem, while a sample is a subset of that population. We calculate a statistic from the sample to make inferences about the unknown population parameter.

A Sample Consists of All Items of Interest in a Statistical