[Tex/LaTex] LaTeX: Statistics CDF and PDF

math-mode

Is there any way to type the CDF and PDF of a distribution on LaTeX similar to how it's done on this site?

https://en.wikipedia.org/wiki/Uniform_distribution_(continuous)

Best Answer

I yield to @CarLaTeX’s invite to provide a slightly simplified version of her answer:

% My standard header for TeX.SX answers:
\documentclass[a4paper]{article} % To avoid confusion, let us explicitly 
                                 % declare the paper format.

\usepackage[T1]{fontenc}         % Not always necessary, but recommended.
% End of standard header.  What follows pertains to the problem at hand.

\usepackage{mathtools}



\begin{document}

Probability density function:
\[
    \begin{cases*}
        \frac{1}{b-a} & for $x\in[a,b]$ \\
        0 & otherwise \\
    \end{cases*}
\]

Cumulative distribution function:
\[
    \begin{cases*}
        0 & for $x<a$ \\
        \frac{x-a}{b-a} & for $x\in[a,b)$ \\
        1 & for $x\ge b$ \\
    \end{cases*}
\]

\end{document}

See the manual of the mathtools package, section 3.4.3 (p. 18) for details.

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