# Probability, Verbal Expressions of

Probability, Verbal Expressions of

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• Verbal expressions of probability are those used for communicating degrees of uncertainty, such as likely, very likely, possible, and uncertain, in contrast with numerical expressions, such as “The probability of X is 70%” or “The odds are 3 to 1.”

Correspondence between Verbal and Numerical Expressions

Since the 1960s, several authors have studied the equivalence between verbal and numerical expressions of probability. The typical experiment consists in selecting a set of linguistic expressions, asking a group of subjects to translate each one into a percentage or a number between 0 and 1, and building a table or a graph that summarizes the results. Most of such studies include expressions that do not represent probabilities in a strict sense.

Variability of Numerical Assignments

Several experiments have indicated low within-subject variability, ... • [0-9]
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