From cd16ffaf94c3e759ffa43ee858f3e6818ec01195 Mon Sep 17 00:00:00 2001 From: zleyyij Date: Tue, 2 Jan 2024 14:13:59 -0700 Subject: [PATCH] vault backup: 2024-01-02 14:13:59 --- education/statistics/Correlation and Regression.md | 1 + 1 file changed, 1 insertion(+) diff --git a/education/statistics/Correlation and Regression.md b/education/statistics/Correlation and Regression.md index 7dd9c34..08fef55 100644 --- a/education/statistics/Correlation and Regression.md +++ b/education/statistics/Correlation and Regression.md @@ -112,6 +112,7 @@ The distance of an individual point from the regression line. This only applies $$ \sqrt{1-r^2}(\sigma_y) $$ - On a least squared regression line, the 1 r.m.s error away will contain $2\sigma$ of the data, and it should loosely mirror a normal curve. - To approximate the R.M.S error for a scatter diagram, take a high value and a low value for a given $x$ coordinate, and divide by 4, because r.m.s error is within $2\sigma$ of either side of the line. +- 68% = $2\sigma$, 95% = $4\sigma$ --- # Terminology