public Students(double nu)
{
_nu = nu;
_normalDistribution = new Normal(0d, 1d);
_chiSquareDistribution = new ChiSquare(_nu);
}
public Fisher(double alpha, double beta)
{
_chiSquareDistributionAlpha = new ChiSquare(alpha);
_chiSquareDistributionBeta = new ChiSquare(beta);
_v1 = beta / alpha;
}