Beta Distribution for PERT project estimation in pure Python.
Motivated by Uncle Bobs Clean Coder chapter about professionalism I created a pure Python programm without dependencies to third party libraries that computes PDF and CDF for Beta distribution given the three point estimates
- O = Optimistic Estimate
- N = Nominal Estimate and
- P = Pessimistic Estimate.
Ron Davis has published an excellent Teaching Note called Teaching Project Simulation in Excel Using PERT-Beta Distributions and available at informs that describes the details about estimating the parameters from the thre estimates O/N/P.