diff --git a/statistics/environments.tex b/statistics/environments.tex
deleted file mode 100644
index bdf8aab..0000000
--- a/statistics/environments.tex
+++ /dev/null
@@ -1,123 +0,0 @@
-
-%%% Local Variables: 
-%%% mode: latex
-%%% TeX-master: t
-%%% End: 
-\definecolor{crimson}{HTML}{DC143C}
-\definecolor{cornflowerblue}{HTML}{6495ED}
-\definecolor{dodgerblue}{HTML}{1E90FF}
-\definecolor{deepskyblue}{HTML}{00BFFF}
-\definecolor{gainsboro}{HTML}{DCDCDC}
-\definecolor{ghostwhite}{HTML}{F8F8F8}
-\definecolor{lightgray}{HTML}{D3D3D3}
-
-\newenvironment<>{emphasize}[1]{%
-  \begin{actionenv}#2%
-      \def\insertblocktitle{#1}%
-      \par%
-      \mode<presentation>{%
-        \setbeamercolor{block title}{fg=black,bg=orange!100}
-       \setbeamercolor{block body}{fg=black,bg=cornflowerblue!70}
-       % \setbeamercolor{itemize item}{fg=orange!20!black}
-       % \setbeamertemplate{itemize item}[triangle]
-       \setbeamerfont{block title}{series=\bfseries}
-       % \setbeamerfont{block body}{family=\ttfamily}
-     }%
-      \usebeamertemplate{block begin}}
-    {\par\usebeamertemplate{block end}\end{actionenv}}
-
-\newenvironment<>{solution}[1]{%
-  \begin{actionenv}#2%
-      \def\insertblocktitle{#1}%
-      \par%
-      \mode<presentation>{%
-        \setbeamercolor{block title}{fg=black,bg=dodgerblue!100}
-       \setbeamercolor{block body}{fg=black,bg=lightgray!70}
-       % \setbeamercolor{itemize item}{fg=orange!20!black}
-       % \setbeamertemplate{itemize item}[triangle]
-       \setbeamerfont{block title}{series=\bfseries}
-       % \setbeamerfont{block body}{family=\ttfamily}
-     }%
-      \usebeamertemplate{block begin}}
-    {\par\usebeamertemplate{block end}\end{actionenv}}
-
-\newenvironment<>{question}[1]{%
-  \begin{actionenv}#2%
-      \def\insertblocktitle{#1}%
-      \par%
-      \mode<presentation>{%
-        \setbeamercolor{block title}{fg=black,bg=dodgerblue!100}
-       \setbeamercolor{block body}{fg=black,bg=lightgray!70}
-       % \setbeamercolor{itemize item}{fg=orange!20!black}
-       % \setbeamertemplate{itemize item}[triangle]
-       \setbeamerfont{block title}{series=\bfseries}
-       % \setbeamerfont{block body}{family=\ttfamily}
-     }%
-      \usebeamertemplate{block begin}}
-    {\par\usebeamertemplate{block end}\end{actionenv}}
-
-\renewenvironment<>{definition}[1]{%
-  \begin{actionenv}#2%
-      \def\insertblocktitle{#1}%
-      \par%
-      \mode<presentation>{%
-        \setbeamercolor{block title}{fg=black,bg=dodgerblue!100}
-       \setbeamercolor{block body}{fg=black,bg=lightgray!70}
-       % \setbeamercolor{itemize item}{fg=orange!20!black}
-       % \setbeamertemplate{itemize item}[triangle]
-       \setbeamerfont{block title}{series=\bfseries}
-       % \setbeamerfont{block body}{family=\ttfamily}
-     }%
-      \usebeamertemplate{block begin}}
-    {\par\usebeamertemplate{block end}\end{actionenv}}
-
-
-\newenvironment<>{description}[1]{%
-  \begin{actionenv}#2%
-      \def\insertblocktitle{#1}%
-      \par%
-      \mode<presentation>{%
-        \setbeamercolor{block title}{fg=white,bg=gray}
-       \setbeamercolor{block body}{fg=black,bg=gray!30}
-       % \setbeamercolor{itemize item}{fg=orange!20!black}
-       % \setbeamertemplate{itemize item}[triangle]
-       \setbeamerfont{block title}{family=\sffamily, series=\bfseries}
-       \setbeamerfont{block body}{family=\ttfamily}
-     }%
-      \usebeamertemplate{block begin}}
-    {\par\usebeamertemplate{block end}\end{actionenv}}
-
-\newenvironment<>{task}[1]{%
-  \begin{actionenv}#2%
-      \def\insertblocktitle{#1}%
-      \par%
-      \mode<presentation>{%
-        \setbeamercolor{block title}{fg=black,bg=dodgerblue!100}
-       \setbeamercolor{block body}{fg=black,bg=deepskyblue!80}
-       % \setbeamercolor{itemize item}{fg=orange!20!black}
-       % \setbeamertemplate{itemize item}[triangle]
-       \setbeamerfont{block title}{series=\bfseries}
-       % \setbeamerfont{block body}{family=\ttfamily}
-     }%
-      \usebeamertemplate{block begin}}
-    {\par\usebeamertemplate{block end}\end{actionenv}}
-
-\newenvironment<>{summary}[1]{%
-  \begin{actionenv}#2%
-      \def\insertblocktitle{#1}%
-      \par%
-      \mode<presentation>{%
-        \setbeamercolor{block title}{fg=black,bg=blue!40}
-       \setbeamercolor{block body}{fg=black,bg=blue!20}
-       % \setbeamercolor{itemize item}{fg=orange!20!black}
-       % \setbeamertemplate{itemize item}[triangle]
-       \setbeamerfont{block title}{series=\bfseries}
-       % \setbeamerfont{block body}{family=\ttfamily}
-     }%
-      \usebeamertemplate{block begin}}
-    {\par\usebeamertemplate{block end}\end{actionenv}}
-%%%%%%%%%%%%%%%%%%% PROGRESSBAR %%%%%%%%%%%%%%%%%%%%%%%%%%
-\definecolor{pbblue}{HTML}{0A75A8}% filling color for the progress bar
-\definecolor{pbgray}{HTML}{575757}% background color for the progress bar
-\definecolor{pbgreen}{HTML}{57EE57}% green color for the progress bar
-
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diff --git a/statistics/talk.tex b/statistics/talk.tex
index 2ed779b..8161694 100755
--- a/statistics/talk.tex
+++ b/statistics/talk.tex
@@ -85,7 +85,7 @@ Bernstein Center T\"ubingen}
 \end{flushright}
 }
 
-\input{environments.tex}
+\input{../latex/environments.tex}
 \makeatother
  
 \begin{document} 
@@ -96,13 +96,13 @@ Bernstein Center T\"ubingen}
 \end{frame} 
 
 \begin{frame} 
-  \frametitle{plan}
+  \frametitle{Plan}
   \setcounter{tocdepth}{1}
   \tableofcontents 
 
 \end{frame} 
 \begin{frame} 
-  \frametitle{where to get information about statistics}
+  \frametitle{Information \"uber Statistik}
   \begin{itemize}
   \item Samuels, M. L., Wittmer, J. A., \& Schaffner,
     A. A. (2010). Statistics for the Life Sciences (4th ed.,