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\pmtitle{example of pairwise independent events that are not totally independent}
\pmrecord{6}{34299}
\pmprivacy{1}
\pmauthor{bbukh}{348}
\pmtype{Example}
\pmcomment{trigger rebuild}
\pmclassification{msc}{60A05}
\endmetadata
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{amsfonts}
\begin{document}
\PMlinkescapeword{blue}
\PMlinkescapeword{red}
\PMlinkescapeword{white}
\PMlinkescapeword{components}
Consider a fair tetrahedral die whose sides are painted red, green, blue, and white. Roll the die. Let $X_r, X_g, X_b$ be the events that die falls on a side that have red, green, and blue color components, respectively. Then