Merge pull request #72 from Manu58/master

seankross · seankross · commit 7d35821d756a · 2015-03-17T18:42:17.000-04:00
suggested addition
diff --git a/statinf.md b/statinf.md
@@ -3,3 +3,5 @@ layout: page
 title: Statistical Inference
 permalink: /statinf/
 ---
+
+- [Why degrees of freedom decrease for sample variance](https://github.com/Manu58/bias/blob/master/bias.pdf)
