Statistical Simulation

Generate random Numbers from a given distribution FF by applying its Quantile Function on a Random Variable XX that has Uniform Distribution on (0,1)(0,1)

Y:=QF(X):=QFX.Y:=Q_F^{-}(X):=Q_F^{-} \circ X.

YY now has CDF FF.

This also works the other way around.

How do we get good random numbers from a Uniform Distribution on (0,1)(0,1)?

  • random physical process
  • deterministic pseudo random numbers
  • coin tossing for digits in binary
  • erasing leading digits of random numbers with a density