He demonstrated that 80% of product defects were caused by 20% of the problems in production methods.
You can become a bang-on violin player or some chit and pull girls in the orchestra.
Juran coined this phenomenon "the vital few and the trivial many." Although there is little scientific analysis that either proves or disproves the 80-20 rule's validity, there is much anecdotal evidence that supports the rule as being essentially valid, if not numerically accurate.
Performance results of salespeople in a wide range of businesses have demonstrated success by incorporating the 80-20 rule.
For example, a student should try to identify which parts of a textbook will create the most benefit for an upcoming exam and focus on those first.
This does not imply, however, that the student should ignore the other parts of the textbook.
I'm sure most of y'all are familiar with the Pareto Principle and how people try applying it to dating saying that "80% of women go after the top 20% of men." What are your thoughts on this and how true do you believe it is?