From 9eecc310e6cbc5c96862abb11cca3e99ba19ff80 Mon Sep 17 00:00:00 2001 From: zleyyij Date: Mon, 18 Dec 2023 14:29:40 -0700 Subject: [PATCH] vault backup: 2023-12-18 14:29:40 --- education/statistics/Correlation and Regression.md | 1 - 1 file changed, 1 deletion(-) diff --git a/education/statistics/Correlation and Regression.md b/education/statistics/Correlation and Regression.md index fe9f94e..fcaeb68 100644 --- a/education/statistics/Correlation and Regression.md +++ b/education/statistics/Correlation and Regression.md @@ -96,7 +96,6 @@ $$ \hat{y} = \frac{x-\bar{x}}{\sigma_x} * r * \sigma_y + \bar{y} $$ 4. Add the average of $y$ - For a positive association, for every $\sigma_x$ above average we are in $x$, the line predicts $y$ to be $\sigma_y$ standard deviations above y.x -- Being asked to interpret the slope: __slope__ means that for every _unit_ ### The Regression Effect - In a test-retest situation, people with low scores tend to improve, and people with high scores tend to do worse. This means that individuals score closer to the average as they retest. - The regression *fallacy* is contributing this to something other than chance error.