What is the Risk Priority Number (RPN) for sev=10, occ=5, and det=2?

The Risk Priority Number (RPN) is calculated by multiplying the severity, occurrence, and detection ratings of a potential failure mode. In this case, the formulas used for each rating are:

• Severity (sev) is rated at 10.

• Occurrence (occ) is rated at 5.

• Detection (det) is rated at 2.

To compute the RPN, you multiply these three values together:

RPN = Severity × Occurrence × Detection

RPN = 10 × 5 × 2

Calculating this gives:

RPN = 10 × 5 = 50

RPN = 50 × 2 = 100

Thus, the correct RPN value is 100. This score helps prioritize the risks associated with failure modes, enabling teams to focus their resources on the most critical issues based on the combined severity, occurrence, and detection ratings. The calculated value reflects a systematic approach to risk assessment.