this is the work I need to reproduce, kindly help with the coding

Question

The page above has work am trying to reproduce but the Greek numeration with marks in parentheses(bold) and the tree diagram have given me trouble. I don't seem to be getting it right. Am new to latex, so kindly help me.

Answer 1

Just like an exercise, I think that your graph is done with tikz-cd, but I can do some mistakes. You can draw also with istgame package, or with tikz tree/forest.

\documentclass[a4paper,12pt]{article}
\usepackage{tikz-cd}
\begin{document}
\begin{tikzcd}[row sep=1cm,column sep=2cm]
& & & 103.68 \\
& & 86.4 \arrow[ru] \arrow[rd] &  \\
&  72 \arrow[rd] \arrow[ru] & & 77.76  \\
60 \arrow[ru] \arrow[rd] &  & 64.8 \arrow[ru] \arrow[rd] & \\
& 54 \arrow[ru] \arrow[rd] &  & 58.32  \\
& & 48.6 \arrow[ru] \arrow[rd] & \\
& & & 43.74 
\end{tikzcd}
\end{document}

I think your output is very similar to this:

If you see some bit differences you can try to modificate the values of row sep=1cm,column sep=2cm.

For further your request you can see these link (for example):

1. Problem with enumeration using greek letters
2. Make some equation numbers bold

Answer 2

A solution with a psmatrix for the tree. For the enumeration with Greek letters, I defined a \greek{counter} command, so the enumitem package accepts the key label=\greek*:

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{pst-node}
\usepackage{upgreek}
\usepackage{enumitem}
\makeatletter
\def@greek#1{%
 \ifcase#1\or%
 \ensuremath{\upalpha}\or
 \ensuremath{\upbeta}\or
 \ensuremath{\upgamma}\or
 \ensuremath{\updelta}\or
 \ensuremath{\upvarepsilon}\or
 \ensuremath{\upzeta}\or
 \ensuremath{\upeta}\or
 \ensuremath{\upvartheta}\or
 \ensuremath{\upiota}\or
 \ensuremath{\upkappa}\or
 \ensuremath{\uplambda}\or
 \ensuremath{\upmu}\or
 \ensuremath{\upnu}\or
 \ensuremath{\upxi}\or
 \ensuremath{\upomicron}\or
 \ensuremath{\uppi}\or
\ensuremath{\uprho}\or
\ensuremath{\upsigma}\or
 \ensuremath{\uptau}\or
 \ensuremath{\upupsilon}\or
 \ensuremath{\upvarphi}\or
 \ensuremath{\upchi}\or
 \ensuremath{\uppsi}\or
 \ensuremath{\upomega}\else
 @ctrerr\fi}%
\def\greek#1{\expandafter@greek\csname c@#1\endcsname}
\AddEnumerateCounter\greek@greek{m}
\makeatother
\begin{document}
\setcounter{section}{15}
\begin{enumerate}[label=(\greek*),font=\bfseries\boldmath]
\item A
\item B
\item C
\end{enumerate}
\begin{psmatrix}[rowsep=0.5cm, arrows=->, arrowinset=0.1, nodesepA=3pt, nodesepB=2pt]
 & & & 103.68 \
  & & 86.4 \
 & 72 & & 77.76 \
60 & & 64.8 \
 & 54 & & 58.32 \
 & & 48.6 \
  & & & 43.74
\ncline{4,1}{3,2}\ncline{3,2}{2,3}\ncline[offsetB=1pt]{2,3}{1,4}
\ncline{4,1}{5,2}\ncline{5,2}{6,3}\ncline{6,3}{7,4}
\ncline{3,2}{4,3}\ncline{4,3}{5,4}
\ncline{5,2}{4,3}\ncline{4,3}{3,4}
\ncline{2,3}{3,4}\ncline{6,3}{5,4}
\end{psmatrix}
\end{document}