Risk Calculation Formula:
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Risk statistics calculation involves quantifying potential risks by combining probability and impact assessments. The formula provides a systematic approach to evaluate multiple risk factors and their combined effect on overall risk exposure.
The calculator uses the statistical risk aggregation formula:
Where:
Explanation: This formula calculates the weighted sum of multiple risk factors, where each risk is the product of its probability and impact, providing an overall risk score.
Details: Statistical risk assessment helps organizations prioritize risks, allocate resources effectively, and make informed decisions based on quantitative analysis rather than subjective judgment.
Tips: Enter probabilities between 0-1 (where 0 = impossible, 1 = certain), and impact values on your chosen scale. The calculator sums the products of probability and impact for all three risk factors.
Q1: What scale should I use for impact values?
A: Impact can be measured on any consistent scale (1-10, 1-100, monetary values, etc.), but ensure all impacts use the same scale for accurate comparison.
Q2: How many risk factors can I include?
A: This calculator handles three risk factors, but the formula can be extended to include as many factors as needed for comprehensive risk assessment.
Q3: What does the final risk score represent?
A: The score represents the aggregate risk exposure, with higher scores indicating greater overall risk that may require more attention and mitigation efforts.
Q4: How accurate is this risk assessment method?
A: While quantitative, accuracy depends on the quality of probability and impact estimates. Regular review and updating of inputs improves reliability.
Q5: Can this be used for project risk management?
A: Yes, this approach is commonly used in project management, financial analysis, safety assessment, and other fields requiring systematic risk evaluation.