Probability Meature 概率测度

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就是一个function u

见wiki

The requirements for a function μ to be a probability measure on aprobability space are that:

  • μ must return results in the unit interval [0, 1], returning 0 for the empty set and 1 for the entire space.
  • μ must satisfy the countable additivity property that for all countablecollections \{E_i\} of pairwise disjoint sets:
 \mu\Bigl(\bigcup_{i \in I} E_i\Bigr) = \sum_{i \in I} \mu(E_i).



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