I think this is more often referred to as the 80/20 rule. The precise ratio is not that important. https://en.wikipedia.org/wiki/Pareto_principle https://en.wik

I think this is more often referred to as the 80/20 rule. The precise ratio is not that important. https://en.wikipedia.org/wiki/Pareto_principle https://en.wikipedia.org/wiki/Pareto_principle