a>
<ul>
<li class="chapter" data-level="5.2.1" data-path="the-essentials-of-linear-modeling-theory.html"><a href="the-essentials-of-linear-modeling-theory.html#least-squares-estimation-geometric-argument"><i class="fa fa-check"></i><b>5.2.1</b> Least squares estimation: Geometric argument</a></li>
<li class="chapter" data-level="5.2.2" data-path="the-essentials-of-linear-modeling-theory.html"><a href="the-essentials-of-linear-modeling-theory.html#the-expectation-and-variance-of-the-parameters-beta"><i class