The fundamental principle of probability sampling is that a sample selected by________ is very likely to be __________.
A) EPSEM, representative
B) polling, large
C) telephone polls, cheap
D) nonprobability methods, representative

Question

Quizplus · Accepted Answer

EPSEM stands for Equal Probability of Selection Method, which means that every unit in the population has an equal chance of being selected in the sample. This ensures representativeness of the sample, which is the fundamental principle of probability sampling. The other options are either specific methods within probability sampling (telephone polls) or non-probability methods (polling), which do not guarantee representativeness.

The Fundamental Principle of Probability Sampling Is That a Sample