Abstract

Any way of assigning numbers to propositions so as to satisfy the axioms constitutes an interpretation of the probability calculus. In general there are two kinds of interpretation, subjective and objective. The subjective interpretation understands X's probability for P as the degree to which X believes P. Objective probabilities apply specifically to propositions which claim that a certain kind of result will occur on a certain kind of repeatable trial, such as that a coin will come down heads when tossed, and specify how often that result occurs in that kind of trial