\documentclass[border=10pt, convert={density=300,outext=.png}]{standalone}
\usepackage[utf8]{inputenc}
\usepackage{amsmath,amssymb}
\usepackage{makecell}
\usepackage{pstricks}
\usepackage{pst-plot}
\usepackage{pgfplots}
\usepackage{pst-func}
\usepackage{pst-eucl}
\usepackage{geometry}
\usepackage{graphicx}
\usepackage{xcolor}

\usepackage{tikz}
\usetikzlibrary{trees}
\usepackage{fancyhdr}
\usepackage{tikz,tkz-tab}
\usepackage{amsmath}
\usepackage{fancyhdr}
\usepackage{graphicx}
\usepackage{array}
\usepackage{multicol}
\usepackage{fontspec}
\usepackage{polyglossia}
\usetikzlibrary{arrows.meta}
\usepackage{unicode-math}
\setmathfont{XITS Math} % أو Latin Modern Math
\usetikzlibrary{positioning}

\usepackage{cancel}

\usetikzlibrary{arrows.meta, positioning}
\setotherlanguage{french}

\geometry{left=2.5cm,right=2.5cm,top=2.5cm,bottom=2.5cm}




\begin{document}
\begin{tikzpicture}[>=stealth, node distance=25mm, scale=1.5, every node/.style={transform shape}]
    \node (start) {};
    \node[right=of start, yshift=18mm] (R) {\Large $\textcolor[rgb]{0.98,0.00,0.00}{R}$};
    \node[right=of start, yshift=-18mm] (V) {\Large $\textcolor[rgb]{0.00,0.46,0.29}{V}$};
    \node[right=of R, yshift=20mm] (RR1) { $\textcolor[rgb]{0.98,0.00,0.00}{RR}$};
    \node[right=of R] (RV1) { $\textcolor[rgb]{0.98,0.00,0.00}{R}\textcolor[rgb]{0.00,0.46,0.29}{V}$};
    \node[right=of R, yshift=-20mm] (VV1) { $\textcolor[rgb]{0.98,0.00,0.00}{RR}$};
    \node[right=of V, yshift=20mm] (RR2) { $\textcolor[rgb]{0.00,0.46,0.29}{VV}$};
    \node[right=of V] (RV2) { $\textcolor[rgb]{0.98,0.00,0.00}{R}\textcolor[rgb]{0.00,0.46,0.29}{V}$};
    \node[right=of V, yshift=-20mm] (VV2) { $\textcolor[rgb]{0.00,0.46,0.29}{VV}$};
    \draw[->, thick] (start) -- (R) node[midway, above left] {};
    \draw[->, thick] (start) -- (V) node[midway, below left] {};
    \draw[->, thick] (start) -- (R) node[midway, above left] {$\displaystyle\frac{2}{5}$};
\draw[->, thick] (start) -- (V) node[midway, below left] {$\displaystyle\frac{3}{5}$};
    \draw[->, thick] (R) -- (RR1) node[midway, above] {$\frac{1}{10}$};
    \draw[->, thick] (R) -- (RV1) node[midway, above] {$\frac{6}{10}$};
    \draw[->, thick] (R) -- (VV1) node[midway, above] { $\frac{3}{10}$};
    \draw[->, thick] (V) -- (RR2) node[midway, above] { $\frac{1}{5}$};
    \draw[->, thick] (V) -- (RV2) node[midway, above] { $\frac{3}{5}$};
    \draw[->, thick] (V) -- (VV2) node[midway, above] {$\frac{1}{5}$};
\end{tikzpicture}


\end{document}