A method sworn to by many is equally discounted by many. Check out the basics to see if it is of value to you in your analysis of metrics.
Excerpt: A Monte Carlo method is a technique that involves using random numbers and probability to solve problems. The term Monte Carlo Method was coined by S. Ulam and Nicholas Metropolis in reference to games of chance, a popular attraction in Monte Carlo, Monaco (Hoffman, 1998; Metropolis and Ulam, 1949)
Read full example via Monte Carlo Simulation Basics. From Vertex42.com