CUPED variance reduction
CUPED (Controlled Pre-Experiment Data) subtracts a pre-period covariate to reduce variance in the metric of interest. The chip surfaces how much variance was removed, which covariate was used, and the resulting bump in statistical power expressed in points (1 pt ≈ 1 percentage point of 1−β).
CUPED variance reduction is a reusable Oak Flats Muffler Men UI primitive with documented states, accessibility expectations, theme behavior, and implementation evidence.
CUPED variance reduction: CUPED (Controlled Pre-Experiment Data) subtracts a pre-period covariate to reduce variance in the metric of interest. The chip surfaces how much variance was removed, which covariate was used, and the resulting bump in statistical power expressed in points (1 pt ≈ 1 percentage point of 1−β).