t-distributions

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(Math | Distributions | t-Distributions)

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

f(t) = [ ((n + 1)/2) (1 + x^{^2} / n)^{^(-n/2 - 1/2)} ] / [ (n/2) (PI n) ] (See also Gamma Function.)