Which factor is used in calculating the RPN?

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Multiple Choice

Which factor is used in calculating the RPN?

Explanation:
In risk prioritization like FMEA, the risk priority number is found by multiplying three factors: Severity, Occurrence, and Detection. Occurrence represents how likely the failure is to happen, i.e., its probability. Among the options, probability is the factor that goes into the RPN calculation because it captures how often a failure might occur, which is essential for prioritizing which issues to address. The standard RPN calculation is RPN = Severity × Occurrence × Detection, with each factor scored on a scale (commonly 1–10). Higher RPN values point to higher risk and greater need for corrective action. For example, if a failure has severity 8, probability (occurrence) 3, and detection 5, the RPN would be 8 × 3 × 5 = 120. Cost, time, and availability aren’t components of the standard RPN formula, though they can influence decisions about action plans or resource allocation in broader risk management.

In risk prioritization like FMEA, the risk priority number is found by multiplying three factors: Severity, Occurrence, and Detection. Occurrence represents how likely the failure is to happen, i.e., its probability. Among the options, probability is the factor that goes into the RPN calculation because it captures how often a failure might occur, which is essential for prioritizing which issues to address.

The standard RPN calculation is RPN = Severity × Occurrence × Detection, with each factor scored on a scale (commonly 1–10). Higher RPN values point to higher risk and greater need for corrective action. For example, if a failure has severity 8, probability (occurrence) 3, and detection 5, the RPN would be 8 × 3 × 5 = 120.

Cost, time, and availability aren’t components of the standard RPN formula, though they can influence decisions about action plans or resource allocation in broader risk management.

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