rning-exercises-1"><i class="fa fa-check"></i><b>2.4</b> Learning exercises</a>
<ul>
<li class="chapter" data-level="2.4.1" data-path="working.html"><a href="working.html#discussion-questions-1"><i class="fa fa-check"></i><b>2.4.1</b> Discussion questions</a></li>
<li class="chapter" data-level="2.4.2" data-path="working.html"><a href="working.html#data-exercises-1"><i class="fa fa-check"></i><b>2.4.2</b> Data exercises</a></li>
</ul></li>
</ul></li>
<li class="chapter" data-level="3" data-path="viz-graphs.