<p>The Wikitrilogy: <a href="http://en.wikipedia.org/wiki/Category%3aStatistics" rel="nofollow">Wikipedia</a>, <a href="http://simple.wikipedia.org/wiki/Category%3aStatistics" rel="nofollow">Simple Wikipedia</a>, and <a href="http://en.wikiversity.org/wiki/Category%3aStatistics" rel="nofollow">Wikiversity</a></p>
