Pareto charts are used to __________.

Pareto charts are utilized primarily to organize errors, problems, or defects by illustrating the principle that a small number of causes often lead to a majority of the problems. This tool is rooted in the Pareto Principle, or the 80/20 rule, which suggests that roughly 80% of effects come from 20% of the causes. By visually representing these factors in descending order of frequency or impact, assignable causes can be easily identified and prioritized for improvement efforts.

In the context of supply chain and operations management, this means that organizations can focus on the most significant issues that contribute to inefficiencies, allowing for more effective allocation of resources and targeted problem-solving strategies. This organization of data not only helps in recognizing areas that need attention but also aids in decision-making regarding where to invest time and resources for maximum benefit.

The other options do not align with the primary purpose of a Pareto chart. While tracking sales performance, measuring customer satisfaction, and calculating production efficiency are important aspects of operations management, they rely on different tools and metrics that do not specifically aim to organize and prioritize causes of errors or defects like a Pareto chart does.