Dave's Math Tables: chi2-distribution |
(Math | Stat | Distributions | chi2-Distributions) |
The -distribution, with n degrees of freedom, is given by the equation:
f() = ()^(n/2 - 1) e^(- / 2 ) 2^(-n/2) / (n/2)The area within an interval (a, ) = f() d = (n/2, a/2) / (n/2) (See also Gamma function)