Generalized-Linear-Models.md

@@ -107,7 +107,9 @@ When constructing a generalized linear model, three major decisions must be made
     about the location of the distribution and in its basic form is a function of 
     distribution mean <a href="https://www.codecogs.com/eqnedit.php?latex=\mu" 
     target="_blank"><img src="https://latex.codecogs.com/svg.latex?\mu" title="\mu" /></a>. 
-    On the other hand, the variance of the distribution is a function of <a 
+    On the other hand, the variance <a href="https://www.codecogs.com/eqnedit.php? 
+    latex=\sigma^2" target="_blank"><img src="https://latex.codecogs.com/svg.latex? 
+    \sigma^2" title="\sigma^2" /></a> of the distribution is a function of <a 
     href="https://www.codecogs.com/eqnedit.php?latex=\mu" target="_blank"><img 
     src="https://latex.codecogs.com/svg.latex?\mu" title="\mu" /></a> and <a 
     href="https://www.codecogs.com/eqnedit.php?latex=\phi" target="_blank"><img