# Appendix

## Probability Distributions

The uniform distribution on has the density

The normal distribution with mean and variance has the density

The gamma distribution with parameters has the density

A gamma distribution with parameters is called -distribution with degrees of freedom, and a gamma distribution with parameters is called exponential distribution.

If and are independent random variables with and , then the distribution of is called t-distribution with degrees of freedom and has the density

If and are independent random variables with and , then the distribution of is called F-distribution with degrees of freedom and has the density