From 9096bbddad3a0084ab5a6b62f4eb56636b588cac Mon Sep 17 00:00:00 2001 From: zleyyij Date: Thu, 14 Dec 2023 14:02:52 -0700 Subject: [PATCH] vault backup: 2023-12-14 14:02:52 --- education/statistics/Correlation and Regression.md | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/education/statistics/Correlation and Regression.md b/education/statistics/Correlation and Regression.md index 3efc928..40689d5 100644 --- a/education/statistics/Correlation and Regression.md +++ b/education/statistics/Correlation and Regression.md @@ -43,4 +43,12 @@ https://www.thoughtco.com/how-to-calculate-the-correlation-coefficient-3126228 | $r$ | Correlation Coefficient | | Linear Correlation | Measures the strength of a line | -(Chapter 9, ST) \ No newline at end of file +(Chapter 9, STAT 1040) + +# Correlation contd. +## Notes +- $r$ is a pure number, and does not have units +- $r$ does not change if you: + - switch the $x$ and $y$ values + - add the same number to every x or y value + - multiply each $x$ or $y$ value by a positive number \ No newline at end of file