What is a Pareto Chart? Analysis & Diagram | ASQ- biểu đồ ppm sanitizer ,The Pareto chart or diagram analyzes the frequency of problems or causes in a process. Learn about the other 7 Basic Quality Tools at ASQ.org.What is a Pareto Chart? Analysis & Diagram | ASQThe Pareto chart or diagram analyzes the frequency of problems or causes in a process. Learn about the other 7 Basic Quality Tools at ASQ.org.