mediumLogic errorCosmos-SDK
Allora: Standard deviation calculation is biased
- Payout
- $0
- Protocol
- Allora
- Disclosed
- Jul 19, 2024
- Source
- sherlock
Allora-chain's Go math utility computes standard deviation with the population formula, dividing the squared deviations by N, even though the same data supplies the sample mean — this makes the estimator biased low by a factor of sqrt((n-1)/n). This biased uti …
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References
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