> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Mean ratio

<Badge color="gray" size="lg">[model\_eligibility](../tags/model_eligibility)</Badge>

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| **Description** | The mean of the unexplained P\&L divided by the standard deviation of the hypothetical P\&L (BCBS 352: 183 (b)) |

**Mean Ratio** = **Mean Unexplained PL** / **Std Dev Hypothetical PL**