Área bajo la curva gaussiana

SUBSECRETARÍA DE EDUCACIÓN SUPERIOR
TECNOLÓGICO NACIONAL DE MÉXICO
INSTITUTO TECNOLÓGICO DE TUXTLA GUTIÉRREZ
CURSO “ELABORACIÓN DE REACTIVOS INTEGRADORES EN LATEX”
sixsigma.tex
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\documentclass{standalone}
\usepackage[utf8]{inputenc}
\usepackage{pst-all,pstricks-add}
\begin{document}
\psset{yunit=8cm}
\begin{pspicture}(-1,-0.25)(12,0.6)
\psaxes[labels=none,ticks=x]{->}(0,0)(0,0)(11,0.5)
\pscustom[linestyle=none,fillstyle=solid,fillcolor=cyan!50]{%
\psplot[algebraic]{5}{8}{GAUSS(x,5,1)}
\psline(8,0)(5,0)
}
\psplot[algebraic,linecolor=blue,linewidth=2pt]{2}{8}{GAUSS(x,5,1)}
\psline[linestyle=dashed](5,0)(5,0.5)
\rput(5,-0.05){$x_0=\mu$}
\psline{|<->|}(2,-0.1)(8,-0.1)
\rput(5,-0.15){$\Delta x = 6\sigma$}
\rput[l](7,0.35){$P(\mu \leq x \leq \mu+3\sigma)$}
\psline{-*}(6.8,0.32)(6,0.1)
\end{pspicture}
\end{document}
P (µ ≤ x ≤ µ + 3σ)
x0 = µ
∆x = 6σ