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  • A probability distribution must have a well defined domain - that is, the set of possible outcomes.
  • For each possible outcome, there must be a non-negative value associated - the probability of that outcome.
  • The sum of the probabilities, over all possible outcomes, must be 1.
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βˆ™ 2017-11-09 14:50:13
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Q: What re the three criteria needed for something to be a probability distribution?
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