What type of graph should the Kia Plant use to display the frequency of defects in car door hinges comprehensively?

The choice of a Pareto Chart for displaying the frequency of defects in car door hinges is particularly effective because it not only shows the individual defects but also organizes them in descending order of frequency. This aligns with the principle of the Pareto Rule, commonly known as the 80/20 rule, which suggests that a small number of causes often lead to the majority of problems. By using a Pareto Chart, the Kia Plant can visually highlight the most significant sources of defects, allowing stakeholders to quickly identify which issues require immediate attention to improve overall quality.

This type of chart also combines both bars and a cumulative line graph, clearly illustrating the proportion of each defect type relative to the total, and how they contribute cumulatively to the total defects. This visual representation is incredibly valuable for decision-making and prioritizing actions for quality improvement efforts.

In contrast, while a bar graph would display the frequency of defects, it would not provide the same cumulative perspective. A line graph is more suited for trends over time rather than categorical defect frequencies. A histogram is useful for displaying the distribution of numerical data, but in this context of categorical frequency, it would not effectively communicate the priority of specific defects. Therefore, the Pareto Chart is the most suitable choice for