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FrequencyProbability -- PersonalProbability -- EclecticProbability

(These axioms are just the most elementary way to define probabilities. Other axiom schema are used with non-discrete points.)

  1. Let U be a SeT of discrete points, e1,e2,e3..., called elementary events. We call this set, the universe or sample space.
  2. Let every elementary event, e in U, have a non-negative weight, w(e), assigned to it.
  3. Let composite events, Y1,Y2,Y3,... be represented by SubSets of U.
  4. Define the probability of an event X (any subset of U), as the sum of the weights, w(e), for every elementary event contained in X divided by the sum of the weights of every element of U.


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Last edited February 17, 2001 7:45 pm by cobrand.bomis.com (diff)