[PS] Some progress

semester4/ps/ps-jh/parts/03_expected-value/01_disc.tex

@@ -12,3 +12,7 @@
     \item $\cX \sim \text{Bin}(n, p)$: $\E[\cX] = np$
     \item $\cX \sim \text{Poisson}(\lambda)$: $\E[\cX] = \lambda$
 \end{itemize}
+
+
+\subsubsection{Transformierte Zufallsvariablen}
+\shorttheorem Für $\varphi : \R \rightarrow \R$, $\E[\varphi(\cX)] = \sum_{x \in W} \varphi(x) \cdot \P[\cX = x]$