Why use RMS values instead of "mean of absolute"
6272
Why V rms instead of V average?
29875
Why not using the R squared to measure forecast accuracy?
39105
Meta-analysis of means and medians in R?
23677
"Scaled $L^p$ norm" and geometric mean
1265
Is my model any good, based on the diagnostic metric ($R^2$/ AUC/ accuracy/ RMSE etc.) value?
21649
P.d.f of the absolute value of a normally distributed variable
120844
Intuitive explanation of unit root
21521
Motivation behind standard deviation?
125189
When conducting a t-test why would one prefer to assume (or test for) equal variances rather than always use a Welch approximation of the df?
47608
Posterior mean if signal is an interval rather than a realization
127688
Example where convergence in mean does not imply convergence in quadratic mean
59274
Why do cost functions use the square error?
56599
Is $R^2$ useful or dangerous?
55816
How do you Interpret RMSLE (Root Mean Squared Logarithmic Error)?
98101
why this product is no more than the product of the two mean values?
155426
Difference between negative and positive temperatures written as absolute value or the negative integer?
151864
Derivative of the Absolute Value Function in Mathematica looks very different from the actual answer