Inverse Gamma Distribution CDF Calculator

Inverse Gamma Distribution CDF Calculator

For an inverse gamma distribution with shape parameter \(\alpha\) and scale parameter \(\beta\), the CDF is given by: $$ F(x;\alpha,\beta)=\frac{\Gamma\left(\alpha,\frac{\beta}{x}\right)}{\Gamma(\alpha)}=Q\left(\alpha,\frac{\beta}{x}\right). $$

* Enter \( x \) (with \( x > 0 \)), \(\alpha > 0\), and \(\beta > 0\).

Step 1: Enter Parameters

Enter a value for \( x \) (must be \( > 0 \)).

e.g., 2

e.g., 3

Formula: $$ F(x;\alpha,\beta)=\frac{\Gamma\left(\alpha,\frac{\beta}{x}\right)}{\Gamma(\alpha)}. $$