Distribution graph


This is a simple calculator for the beta-negative binomial distribution with left shape parameter \(a\), right shape parameter \(b\) and success parameter \(k\). The calculator gives the value of the cumulative distribution function \(p = F(x)\) for a given value of \(x\), or the value of the quantile function \(x = F^{-1}(p)\) for a given value of \(p\). The parameters \(a\), \(b\), and \(k\), and the variables \(x\) and \(p\) can be varied with input controls. Either CDF view or PDF view can be selcted.