"fa fa-check"></i><b>9.5</b> Measures of dispersion</a>
<ul>
<li class="chapter" data-level="9.5.1" data-path="ch-centre-and-dispersion.html"><a href="ch-centre-and-dispersion.html#sec:variance"><i class="fa fa-check"></i><b>9.5.1</b> Variance</a></li>
<li class="chapter" data-level="9.5.2" data-path="ch-centre-and-dispersion.html"><a href="ch-centre-and-dispersion.html#sec:standarddeviation"><i class="fa fa-check"></i><b>9.5.2</b> standard deviation</a></li>
<li class="chapter" data-level="9.5.3" data-path