the 80/20 rule Meaning in the Cambridge English Dictionary
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Meaning of “the 80/20 rule” in the English Dictionary

"the 80/20 rule" in Business English

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the 80/20 rulenoun [S]

uk   us   (also the 80/20 principle) MANAGEMENT
a ​principlestating that 80 ​percent of problems or ​effects come from 20 ​percent 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.
(Definition of the 80/20 rule from the Cambridge Business English Dictionary © Cambridge University Press)
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