Math2.org Math Tables: t-distributions

(Math)

t-distributions graph
The t-distribution, with n degrees of freedom, is given by the equation:

\[ f(t) = \frac{\Gamma(\frac{n+1}{2})(1 + \frac{x^2}{n})<sup>{2}</sup>} {\Gamma(\frac{n}{2}) \sqrt{\pi n}} \]
(See also Gamma Function.)