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Read the original calculator setup
The tool takes a declared normal loss law with supplied mean and standard deviation. Its calculation answers what the tail summaries are under those assumptions. It does not test the data or choose the law.
Retain the data-review questions
| Record | Evidence or task |
|---|---|
| Declared law | Explicit normal assumption and compatible parameters |
| Parameter estimate | Observed data and estimator |
| Distribution assessment | Shape, tails, diagnostics and limitations |
| Exposure model | Loss construction and nonlinear pricing basis |
Avoid a sample-size shortcut
A large observation count does not automatically make the original loss distribution normal. A central-limit statement about an average or sum needs its conditions and does not silently transform every individual observed loss law.
Use the appropriate follow-up
If empirical tails or exposures contradict the approximation, investigate a suitable loss model or additional scenarios. Record the unresolved issue rather than relabeling a mathematical result as validated market risk.