rns as the sample gets larger. In fact, the rate at which the benefit of larger samples decreases follows a simple mathematical rule, growing as the square root of the sample size, such that in order to double the precision of our estimate we need to quadruple the size of our sample.</p>
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<div id="causality-and-statistics" class="section level2 hasAnchor" number="1.5">
<h2><span class="header-section-number">1.5</span> Causality and statistics<a href="introduction.html#causality-and-statistics"