I have the following tikz picture but I can't figure out how to properly align the characters on the left (A,B,C,D,E). I'm pretty sure there's a better way than how I did it with the node labels. Any ideas? I keep getting lost in the pgf tikz documentation and other examples on SE don't seem to have the right solution for me...
Cheers F
\begin{tikzpicture}[scale=.75]
\coordinate (y) at (0,6);
\coordinate (x) at (11,0);
\draw[<->, style=thick] (y) node[above left]{outcomes} -- (0,0) -- (x);
\filldraw[red] (1,2) circle (5pt);
\filldraw[red] (1,3) circle (5pt);
\filldraw[red] (1,4) circle (5pt);
\filldraw[blue] (2,1) circle (5pt);
\filldraw[blue] (2,2) circle (5pt);
\filldraw[blue] (2,3) circle (5pt);
\filldraw[blue] (2,4) circle (5pt);
\filldraw[red] (5,2) circle (5pt);
\filldraw[red] (5,3) circle (5pt);
\filldraw[red] (5,4) circle (5pt);
\filldraw[blue] (6,2) circle (5pt);
\filldraw[blue] (6,4) circle (5pt);
\filldraw[red] (9,2) circle (5pt);
\filldraw[red] (9,3) circle (5pt);
\filldraw[red] (9,4) circle (5pt);
\filldraw[blue] (10,3) circle (5pt);
\filldraw[blue] (10,4) circle (5pt);
\draw
(0,1) node[left] {E}
(0,2) node[left] {D}
(0,3) node[left] {C}
(0,4) node[left] {B}
(0,5) node[left] {A}
(1,0) node[below] {$\theta$}
(2,0) node[below] {$\theta'_1$}
(5,0) node[below] {$\theta$}
(6,0) node[below] {$\theta'_2$}
(9,0) node[below] {$\theta$}
(10,0) node[below] {$\theta'_3$}
\end{tikzpicture}
\end{tikzpicture}
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