The 80/20 rule is not a formal mathematical equation, but more a generalized phenomenon that can be observed in economics, business, time management, and even sports. General examples of the Pareto principle: 20% of a plant contains 80% of the fruit. 80% of a company's profits come from 20% of customers.
80% of results are produced by 20% of causes.\n\n So, here are some Pareto 80 20 rule examples: 20% of criminals commit 80% of crimes. 20% of drivers cause 80% of all traffic accidents. 80% of pollution originates from 20% of all factories.