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Representative samples are designed to reflect characteristics or qualities present in the population and are important for accurate research. Representative samples are designed to reflect characteristics or qualities present in the population and are important for accurate research.
Representativeness heuristic. The representativeness heuristic is used when making judgments about the probability of an event under uncertainty. It is one of a group of heuristics (simple rules governing judgment or decision-making) proposed by psychologists Amos Tversky and Daniel Kahneman in the early 1970s.