# Trimmed data set

Trimmed data set means a data set that has had extraordinarily large notional transactions removed by transforming the data into a logarithm with a base of 10, computing the mean, and excluding transactions that are beyond two standard deviations above the mean for the other commodity asset class and three standard deviations above the mean for all other asset classes.

## Source

17 CFR § 43.2

## Scoping language

Definitions. As used in this part: