Amended: 22 February 2016: There were a couple of errors in the code which I have now fixed. The previous code omitted the need for the xcolor package and the some coding items symbols (notably '\' were missing).
I have been searching the internet on how to produce a normal distribution curve in LaTeX with the standard deviations marked. I wasn't able to find exactly what I wanted, but got some good clues here. This code uses the pgfplots package. The code should work 'as is'.
\documentclass
\usepackage
\usepackage
\usepackage
\usepackage
\pgfplotsset
\begin
\pgfmathdeclarefunction<\pgfmathparse<1/(#2*sqrt(2*pi))*exp(-((x-#1)^2)/(2*#2^2))>%
>
\begin
\begin[no markers, domain=0:10, samples=100,
axis lines*=left, xlabel=Standard deviations, ylabel=Frequency,,
height=6cm, width=10cm,
xtick=, ytick=\empty,
enlargelimits=false, clip=false, axis on top,
grid = major]
\addplot [fill=cyan!20, draw=none, domain=-3:3] \closedcycle;
\addplot [fill=orange!20, draw=none, domain=-3:-2] \closedcycle;
\addplot [fill=orange!20, draw=none, domain=2:3] \closedcycle;
\addplot [fill=blue!20, draw=none, domain=-2:-1] \closedcycle;
\addplot [fill=blue!20, draw=none, domain=1:2] \closedcycle;
\addplot[] coordinates ;
\addplot[] coordinates ;
\addplot[] coordinates ;
\node[coordinate, pin=] at (axis cs: 0, 0.4)<>;
\node[coordinate, pin=] at (axis cs: 0, 0.3)<>;
\node[coordinate, pin=] at (axis cs: 0, 0.2)<>;
\node[coordinate, pin=] at (axis cs: -0.5, 0)<>;
\node[coordinate, pin=] at (axis cs: 0.5, 0)<>;
\node[coordinate, pin=] at (axis cs: 1.5, 0)<>;
\node[coordinate, pin=] at (axis cs: -1.5, 0)<>;
\node[coordinate, pin=] at (axis cs: 2.5, 0)<>;
\node[coordinate, pin=] at (axis cs: -2.5, 0)<>;
\end
\end
\end
I am a Senior Lecturer at the Learning and Teaching Enhancement Centre (LTEC), Kingston University London. This is my personal website where I share my own thoughts on matters relating to teaching and learning in higher education. I am also author of the online book Statistics for the Humanities. All views expressed here are my own, except where otherwise made clear. ORCHID orcid.org/0000-0002-5481-7724
