diff --git a/semester4/ps/ps-jh/parts/02_discrete-continuous-rv/04_cont-dist.tex b/semester4/ps/ps-jh/parts/02_discrete-continuous-rv/04_cont-dist.tex
index c55f360..d49e17c 100644
--- a/semester4/ps/ps-jh/parts/02_discrete-continuous-rv/04_cont-dist.tex
+++ b/semester4/ps/ps-jh/parts/02_discrete-continuous-rv/04_cont-dist.tex
@@ -9,7 +9,7 @@ $f_\cX$ ist Dichte (pdf) von $\cX$
 Dann $\cX$ stetig, mit $a_k$ beliebig und
 \[
     f_\cX = \begin{cases}
-        F_\cX'(x) & \exists k \in \{0, 1, \ldots, n - 1\} \\
+        F_\cX'(x) & \exists k \in \{0, 1, \ldots, n - 1\} : x \in (x_k, x_{k + 1}) \\
         a_k       & x \in \{ x_1, \ldots, x_{n - 1} \}
     \end{cases}
 \]
diff --git a/semester4/ps/ps-jh/probability-and-statistics-cheatsheet.pdf b/semester4/ps/ps-jh/probability-and-statistics-cheatsheet.pdf
index 60f39a4..120ee4d 100644
Binary files a/semester4/ps/ps-jh/probability-and-statistics-cheatsheet.pdf and b/semester4/ps/ps-jh/probability-and-statistics-cheatsheet.pdf differ