CompTIA Project+ Practice Test

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What tool would a project manager use to determine trends over time?

Histogram
Ishikawa diagram
Pareto chart
Run chart

The correct answer is: Run chart

A run chart is a tool specifically designed to visualize data points in a time sequence, making it exceptionally useful for identifying trends over time. By plotting individual data values sequentially, it allows a project manager to analyze how a particular metric changes over a designated period. This makes it easier to detect patterns, such as increases or decreases in performance, which can inform decision-making and strategy adjustments. For instance, if a project manager is tracking the completion times of tasks, a run chart can reveal whether the trend is towards improving efficiency or if there are periods of decline. This temporal perspective is crucial for proactive management and timely interventions. While other tools like histograms and Pareto charts provide valuable insights into data distribution and priorities, they do not specifically focus on changes over time. The Ishikawa diagram is more oriented towards identifying root causes of problems rather than trends, making the run chart the most appropriate choice for the specific need of tracking trends over time.