ABSTRACT

A random variable X is said to have a chi-square distribution with ν degrees of freedom if its probability distribution function (pdf) is specified by () f ( χ 2 ) = 1 2 ν 2 Γ ( ν 2 ) ( χ 2 ) ν 2 − 1 e − χ 2 2 ;   χ 2 > 0 ;   Γ = Gamma function https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429124754/be33da89-95f5-45e7-a067-f2fa13b8eb97/content/eq1436.tif"/>