From 0ccf5d0b5a7cec3883fe5c779641ed346baaf5a2 Mon Sep 17 00:00:00 2001 From: zleyyij Date: Thu, 14 Dec 2023 14:12:53 -0700 Subject: [PATCH] vault backup: 2023-12-14 14:12:53 --- education/statistics/Correlation and Regression.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/education/statistics/Correlation and Regression.md b/education/statistics/Correlation and Regression.md index 4f93bbb..951e6f6 100644 --- a/education/statistics/Correlation and Regression.md +++ b/education/statistics/Correlation and Regression.md @@ -53,4 +53,6 @@ https://www.thoughtco.com/how-to-calculate-the-correlation-coefficient-3126228 - add the same number to every x or y value - multiply each $x$ or $y$ value by a positive number - The correlation coefficient can be misleading in the presence of outliers or nonlinear association. -- $r$ only shows the strength of a linear relationship. \ No newline at end of file +- $r$ only shows the strength of a linear relationship. +- High $r$ only indicates high correlation, not causation. +- $r$ is not a linear, perfect scale. An $r$ of 0.8 does not mean twice as much linearity as an $r$ of 0.4 \ No newline at end of file