Focus on the pronunciation of the 80/20 rule
English definition of “the 80/20 rule”
the 80/20 rule
noun [S] (also the 80/20 principle) MANAGEMENT
› a principle stating that 80 per cent of problems or effects come from 20 per cent of causes for a particular event: Use the 80/20 rule to increase your website’s effectiveness by focusing on the 20% that will bring you 80% of the results.