KnowraVarianceLinked fromLinked fromThe 63 pages that link to Variance, each with the reason it gives.All 63Broader topic 2Related 48Narrower topic 8Compared with 5Principal component analysisNarrower topic: PCA ranks components by the variance of the projected data.Standard deviationNarrower topic: Standard deviation is the square root of this measure.Thermal fluctuationsNarrower topic: Thermal fluctuation strength is commonly quantified by the variance of an observable.Rao–Blackwell theoremNarrower topic: The theorem compares the variances of the original and conditioned estimators.F-distributionNarrower topic: F-tests compare variance estimates or quantities proportional to residual variance.Law of total varianceNarrower topic: The identity decomposes this overall measure of spread.Popoviciu's inequalityNarrower topic: The inequality places a sharp upper bound on this measure of spread.Bienaymé's identityNarrower topic: The identity concerns how this measure behaves when random variables are added.