Episode 48 — Correlation, Dependencies, and Common Causes
Many analyses fail because they assume inputs vary independently when, in practice, they rise and fall together. This episode clarifies correlation (variables moving in related ways), explicit dependencies (logic or resource links), and common causes (a single driver affecting several risks). We show how ignoring these relationships underestimates tail risk and overstates confidence in meeting targets. On the PMI-RMP exam, you will see stems where correct answers acknowledge shared drivers—like market conditions or regulatory reviews—rather than treating items as isolated. We also separate correlation used in quantitative models from qualitative dependency mapping, so you match the tool to the decision.
Examples make it concrete: commodity price swings that influence multiple procurements, a single security review gating several releases, or a seasonal staffing trend that lowers throughput across teams simultaneously. Best practices include documenting assumed relationships, stress-testing extremes, and grouping risk responses to address root drivers instead of micromanaging symptoms. Troubleshooting guidance covers false correlations from limited data, double counting impacts when dependencies are modeled both in logic and risk, and communication mistakes that present mathematical correlation to nontechnical audiences without explaining the managerial implication. Recognizing and handling relationships prevents “precise but wrong” conclusions and leads to coherent, portfolio-level moves the exam favors. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.
