ref="measure-sampl.html#review-questions-3"><i class="fa fa-check"></i><b>5.6</b> Review Questions</a></li>
</ul></li>
<li class="chapter" data-level="6" data-path="data-prep.html"><a href="data-prep.html"><i class="fa fa-check"></i><b>6</b> Data Preparation</a>
<ul>
<li class="chapter" data-level="6.1" data-path="data-prep.html"><a href="data-prep.html#data-extraction"><i class="fa fa-check"></i><b>6.1</b> Data Extraction</a>
<ul>
<li class="chapter" data-level="6.1.1" data-path="data-prep.html"><a href="d