In this scenario, a low-probability risk has occurred, leading to a significant project delay. To demonstrate to stakeholders that the project can still be concluded successfully, it's essential to identify the root cause of this unexpected event. An Ishikawa diagram, also known as a fishbone diagram or cause-and-effect diagram, is a tool that helps in identifying the various potential causes of a specific problem or effect. By systematically exploring all possible causes, the project team can pinpoint the underlying issues that led to the risk event. Understanding these root causes enables the team to implement corrective actions and preventive measures, thereby assuring stakeholders of the project's viability and the team's commitment to addressing unforeseen challenges effectively.

PMI Risk Management Study Guide References:

The PMI-RMP Exam Preparation Study Guide emphasizes the importance of root cause analysis in risk management, stating that tools like the Ishikawa diagram are instrumental in uncovering the fundamental reasons behind unexpected risk events, which is crucial for developing effective mitigation strategies.