updates of section 2

Book/Chapter2/Figures/figure-schematic-edge-probability&joint-probability.tex

@@ -7,17 +7,13 @@
 
 \begin{scope}[scale=1.0]
 {
-\node [anchor=north west,minimum width=5em, minimum height=2.2em,fill=blue!70](num1)  at (0,0) {\quad \ A};
 
-\node [anchor=north west,minimum width=2em, minimum height=2.2em,fill=green!70](num2)  at ([xshift=3.8em,yshift=2.23em]num1.south west) {B};
+\node [anchor=north west,minimum width=7em, minimum height=2.5em,fill=blue!30](num1)  at (0,0) {$A$\quad \quad \quad \quad  };
+\node [anchor=west,minimum width=7em, minimum height=5em,fill=ugreen!30](num2)  at ([xshift=-3em]num1.east) {\quad \quad $B$};
+\node [anchor=west,minimum width=3em, minimum height=2.5em,fill=yellow!30](part1)  at (num2.west) {$C$};
 
-
-\node [anchor=north west,minimum width=3.8em, minimum height=2.2em,fill=yellow!70](part1)  at ([xshift=5.8em,yshift=2.23em]num1.south west) {C\quad \ };
-
-
-\draw [-,very thick,black] (num1.north west)--(num2.north west)--(num2.south west)--(num1.south west)--([yshift=0.05em]num1.north west);
-\draw [-,very thick,black] (num2.north west)--(num2.north east)--(num2.south east)--(num2.south west)--(num2.north west);
-\draw [-,very thick,black] (num2.north east)--(part1.north east)--(part1.south east)--(num2.south east);
+\draw [-,thick] (num1.north west) -- (num1.north east) -- (num1.south east) -- (num1.south west) -- (num1.north west);
+\draw [-,very thick,dotted] (num2.north west) -- (num2.north east) -- (num2.south east) -- (num2.south west) -- (num2.north west);
 
 }
 \end{scope}