Mathematics: the logic of certainty.

Statistics: the logic of uncertainty.

Certainty/Uncertainty:

Phenomenon • Result

Phenomenon -> Observation -> (Certainty, Uncertainty)

Trial/Test:

  • within same conditions;
  • Observe objective phenomenon.

Statistical law:

certain laws existed in enormous amount of repeated trials.

Random Phenomenon:

a kind of phenomenon, show statistical laws in enormous amount of repeated trials.

The theory of Probability:

A subject to do research on random phenomenon.

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