Editing Logistic distribution (section)

=== Quantile function ===
The [[inverse function|inverse]] cumulative distribution function ([[quantile function]]) of the logistic distribution is a generalization of the [[logit]] function.  Its derivative is called the quantile density function.  They are defined as follows:

:<math>Q(p;\mu,s) = \mu + s \ln\left(\frac{p}{1-p}\right).</math>

:<math>Q'(p;s) = \frac{s}{p(1-p)}.</math>