"80% of the problems are due to 20% of the causes, also called as 80/20 principle, is a concept of." Project Human & Quality Management "80% of the problems are due to 20% of the causes, also called as 80/20 principle, is a concept of." A. Edward Deming B. Philip Crosby C. Pareto D. Juran" Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+