Question

Write down the definition of a random sample.

Answer 1

Explanation:

Random sampling is a procedure for sampling from a population in which (a) the selection of a sample unit is based on chance and (b) every element of the population has a known, non-zero probability of being selected.

Answer 2

A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.

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