Which type of graph is used to present data over time and can show trends or patterns?

A run chart is an effective tool for displaying data over time, making it ideal for visualizing trends or patterns. It consists of data points plotted sequentially along a time axis, allowing observers to see fluctuations and trends throughout the observed period. This format enables healthcare professionals and quality managers to assess how a particular variable behaves over time, whether improvements are being sustained, and if any patterns emerge that may warrant further investigation or action.

In contrast, a pie chart is designed to show parts of a whole at a single point in time and is not suitable for displaying trends. A scatter plot is typically used to show the relationship between two variables rather than changes in a single variable over time. A histogram depicts the distribution of data points across different ranges, focusing on frequency rather than trends over a timeline. Thus, the run chart clearly stands out as the best choice for analyzing data to identify temporal patterns and trends.