Template:Loglogistic reliability function

The Loglogistic Reliability Function
The reliability for a mission of time $$T$$, starting at age 0, for the loglogistic distribution is determined by:


 * $$R=\frac{1}{1+{{e}^{z}}}$$


 * where:


 * $$z=\frac{{T}'-\mu }{\sigma }$$


 * $${T}'=\ln (t)$$

The unreliability function is:


 * $$F=\frac{1+{{e}^{z}}}$$