% arara: pdflatex
% arara: sagetex
% arara: pdflatex
\documentclass[a4paper]{article}
\usepackage[margin=1cm]{geometry}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\usepackage{sagetex}
\begin{document}
\section{Eingangsdaten}
\begin{sageblock}
n = 2000
p = 0.2
\end{sageblock}
\section{Graph mit Sage}
\begin{sageblock}
import scipy.stats
binom_dist = scipy.stats.binom(n,p)
Layout = dict(frame=False, axes_labels=['$k$','$B(k,{},{})$'.format(n,float(p))])
\end{sageblock}
\sageplot[width=.5\textwidth]{