diff --git a/semester4/ps/ps-jh/parts/06_estimators/02_max-likelihood.tex b/semester4/ps/ps-jh/parts/06_estimators/02_max-likelihood.tex
index 0157429..9593eaf 100644
--- a/semester4/ps/ps-jh/parts/06_estimators/02_max-likelihood.tex
+++ b/semester4/ps/ps-jh/parts/06_estimators/02_max-likelihood.tex
@@ -67,7 +67,7 @@ $p_\cX(x; \vartheta) = \P_\vartheta[\cX = x] = \vartheta^x (1 - \vartheta)^{1 -
 
 \highlight{Poisson} dabei $\vartheta = \lambda$ und \bi{Log LH-Func}
 \[
-    l(\vartheta) = -n \vartheta \lambda + \log(\lambda) \sum_{i = 1}^{n} x_i - \sum_{i = 1}^{n} \log(x_i!)
+    l(\vartheta) = -n \vartheta + \log(\vartheta) \sum_{i = 1}^{n} x_i - \sum_{i = 1}^{n} \log(x_i!)
 \]
 \bi{ML-Schätzer} ist $T = \frac{1}{n} \sum_{i = 1}^{n} X_i$
 
diff --git a/semester4/ps/ps-jh/probability-and-statistics-cheatsheet.pdf b/semester4/ps/ps-jh/probability-and-statistics-cheatsheet.pdf
index c87a45a..0cb01e7 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