\documentclass[a4paper,12pt]{scrartcl}
\usepackage[ngerman]{babel}
\usepackage{graphicx} %BIlder einbinden
\usepackage{amsmath} %erweiterte Mathe-Zeichen
\usepackage{amsfonts} %weitere fonts
\usepackage[utf8]{inputenc} %Umlaute & Co
\usepackage{hyperref} %Links
\usepackage{ifthen} %ifthenelse
\usepackage{enumerate}

\usepackage{algpseudocode} %Pseudocode
\usepackage{dsfont} % schöne Zahlenräumezeichen
\usepackage{amssymb, amsthm} %noch stärker erweiterte Mathe-Zeichen
\usepackage{tikz} %TikZ ist kein Zeichenprogramm
\usetikzlibrary{trees,automata,arrows,shapes}

\pagestyle{empty}


\topmargin-50pt

\newcounter{aufgabe}
\def\tand{&}

\newcommand{\makeTableLine}[2][0]{%
  \setcounter{aufgabe}{1}%
  \whiledo{\value{aufgabe} < #1}%
  {%
    #2\tand\stepcounter{aufgabe}%
  }
}

\newcommand{\aufgTable}[1]{
  \def\spalten{\numexpr #1 + 1 \relax}
  \begin{tabular}{|*{\spalten}{p{1cm}|}}
    \makeTableLine[\spalten]{A\theaufgabe}$\Sigma$~~\\ \hline
    \rule{0pt}{15pt}\makeTableLine[\spalten]{}\\
  \end{tabular}
}

\def\header#1#2#3#4#5#6#7{\pagestyle{empty}
\begin{minipage}[t]{0.47\textwidth}
\begin{flushleft}
{\bf #4}\\
#5
\end{flushleft}
\end{minipage}
\begin{minipage}[t]{0.5\textwidth}
\begin{flushright}
#6 \vspace{0.5cm}\\
%                 Number of Columns    Definition of Columns      second empty line
% \begin{tabular}{|*{5}{C{1cm}|}}\hline A1&A2&A3&A4&$\Sigma$\\\hline&&&&\\\hline\end{tabular}\\\vspace*{0.1cm}
\aufgTable{#7}
\end{flushright}
\end{minipage}
\vspace{1cm}
\begin{center}
{\Large\bf Sheet #1}

{(Hand in #3)}
\end{center}
}



%counts the exercisenumber
\newcounter{n}

%Kommando für Aufgaben
%\Aufgabe{AufgTitel}{Punktezahl}
\newcommand{\Aufgabe}[2]{\stepcounter{n}
    \indent\textbf{Exercise \arabic{n}: #1} (#2 Points)\\}




\begin{document}
    %\header{BlattNr}{Tutor}{Abgabedatum}{Vorlesungsname}{Namen}{Semester}{Anzahl Aufgaben}
    \header{1}{}{2015-04-22}{Intelligent Systems I}{\textit{Maximus Mutschler}\\ \textit{Jan-Peter Hohloch}
    }{SS 15}{4}
    \vspace{1cm}
    \Aufgabe{Python}{4}
        done\\
    \Aufgabe{Poker}{2+2+4=8}
        \begin{enumerate}[1.]
            \item possible hands: ${52 \choose 5}=2598960$\\
                hands with exaclty one pair: ${13\choose 1}\cdot{4\choose 2}\cdot {12\choose 3}\cdot 4^3=1098240$\\
                $\mathds{P}(1\ pair)=\frac{1098240}{2598960}=\frac{352}{833}\approx 0.423$
            \item hands with exaclty two pairs: ${13\choose 2}{4\choose 2}^2\cdot 11\cdot 4=123552$\\
            $\mathds{P}(2\ pairs)=\frac{123552}{2598960}=\frac{198}{4165}\approx 0.0475$
            \item \begin{enumerate}[(a)]
                \item hands with exaclty two pairs without spades: ${13\choose 2}{3\choose 2}^2\cdot 11\cdot 3=23166$\\
                possible hands ${39 \choose 5} = 575757$\\
                $\mathds{P}(2\ pairs|\neg Spades)=\frac{23166}{575757}=\frac{198}{4921}\approx 0.04023$\\
                one pair:\\
                ${13\choose 1}{3\choose 2}{12 \choose 3}\cdot 3^3=231660$\\
                $\mathds{P}(1\ pair|\neg Spades)=\frac{231660}{575757}=\frac{1980}{4921}\approx 0.40235$
                \item $A:=2\ pairs,\ B:=\neg Spades$\\
                $P(A|B)=\frac{P(B|A)P(A)}{P(B)}$\\
                $P(A)=\frac{198}{4165},\ P(B)=\frac{39}{52}\cdot\frac{38}{51}\cdot\frac{37}{50}\cdot\frac{36}{49}\cdot\frac{35}{48}=\frac{2109}{9520}$\\
                $P(B|A)=1-P(\neg B| A)=1-\left(\frac{1}{4}+\frac{3}{4}\frac{1}{4}+\left(\frac{3}{4}\right)^2\frac{1}{4}+\left(\frac{3}{4}\right)^3\frac{1}{4}+\left(\frac{3}{4}\right)^4\frac{1}{3}\right)=1-\frac{101}{128}=\frac{27}{128}\approx 0.211$\\
                $P(A|B)=\frac{\frac{27}{128}\cdot \frac{198}{4165}}{\frac{2109}{9520}}$%TODO
            \end{enumerate}
        \end{enumerate}
    \Aufgabe{Random Variables}{2+2+2=6}
        \begin{enumerate}
            \item $F\left(\frac{3}{2}\right)-F\left(\frac{1}{2}\right)=\frac{3}{4}-\frac{1}{4}=\frac{1}{2}$
            \item $x^2<x\Leftrightarrow x\in(0,1)$  doesn't work if the pdf is something like x+a\\
            $\Rightarrow \mathds{P}(Y<X)=\mathds{P}(0<X<1)=F\left(1\right)-F\left(0\right)=\frac{1}{2}-0=\frac{1}{2}$\\
            $f_x(x)=\begin{cases}
            0 & if\ x<0\ or\ x>2\\
            \frac{1}{2} & if\ 0\leq x\leq 2\\
            \end{cases}$
             $f_y(x)=\begin{cases}
             0 & if\ x<0\ or\ x>2\\
             \frac{1}{2}x & if\ 0\leq x\leq 2\\
             \end{cases}$\\\\
             $f_y(x)<f_x(x) \Leftrightarrow x\in[0,1)$ \\
             $\Rightarrow \mathds{P}(Y<X)=\mathds{P}(0\leq X<1)=F\left(1\right)-F\left(0\right)=\frac{1}{2}-0=\frac{1}{2}$\\
            \item $F_Z(x)=\begin{cases}
                0 & if\ x<0\\
                \frac{\sqrt{2}}{2}\sqrt{x} & if\ 0\leq x\leq 2\\
                1 & if\ x>2
            \end{cases}$%TODO
        \end{enumerate}
    \Aufgabe{Keep Rolling!}{4}
        $\mathds{E}(X)=\frac{1}{\frac{1}{6}}=6$ (geometric distribution)\\
        $\mathds{E}(X)=?$%TODO
\end{document}