data-level="7.1" data-path="sampling.html"><a href="sampling.html#how-do-we-sample"><i class="fa fa-check"></i><b>7.1</b> How do we sample?</a></li>
<li class="chapter" data-level="7.2" data-path="sampling.html"><a href="sampling.html#samplingerror"><i class="fa fa-check"></i><b>7.2</b> Sampling error</a></li>
<li class="chapter" data-level="7.3" data-path="sampling.html"><a href="sampling.html#standard-error-of-the-mean"><i class="fa fa-check"></i><b>7.3</b> Standard error of the mean</a></li>
<li class="c