[PS] Some fixes

semester4/ps/ps-jh/parts/03_expected-value/02_cont.tex

@@ -9,7 +9,7 @@
 \begin{itemize}
     \item $\cX \sim \cU([a, b])$, $a < b$: $\E[\cX] = \frac{a + b}{2}$
     \item $\cX \sim \text{Exp}(\lambda)$, $\lambda > 0$: $\E[\cX] = \frac{1}{\lambda}$
-    \item $\cX \sim \cU(\mu, \sigma^2)$, $z = x - \mu$, $\dx z = \dx x$: $\E[\cX] = \mu$
+    \item $\cX \sim \cN(\mu, \sigma^2)$: $\E[\cX] = \mu$
     \item $\cX \sim \text{Cauchy}(x_0, \gamma)$: Existiert nicht (Int. $\8$)\\
           $\E[\cX_+] = \E[\cX_-] = \8$, Median: $0$
 \end{itemize}