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title: 隨機變數 (Random Variable)
description:
published: true
date: 2025-12-28T16:53:37.293Z
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editor: ckeditor
dateCreated: 2025-12-28T16:41:51.938Z
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<h2><span style="font-family:Arial, Helvetica, sans-serif;">Discrete</span></h2>
<h3><span style="font-family:Arial, Helvetica, sans-serif;">Probability Mass Function (PMF)</span></h3>
<p><span style="font-family:Arial, Helvetica, sans-serif;">A set of probability value <strong>p<sub>i</sub></strong> assigned to each of the values taken by the discrete random variables <strong>x<sub>i</sub></strong>.</span></p>
<pre><code class="language-plaintext">$`\sqrt{3x-1}+(1+x)^2`$</code></pre>
<p>&nbsp;</p>
<h3><span style="font-family:Arial, Helvetica, sans-serif;">Cumulative Distribution Function (CDF)</span></h3>
<p>&nbsp;</p>
<h2><span style="font-family:Arial, Helvetica, sans-serif;">Continuous</span></h2>
<h3><span style="font-family:Arial, Helvetica, sans-serif;">Probability Density Function (PDF)</span></h3>
<p>&nbsp;</p>
<p>&nbsp;</p>
<h3><span style="font-family:Arial, Helvetica, sans-serif;">Cumulative Distribution Function (CDF)</span></h3>
<p>&nbsp;</p>
<p>&nbsp;</p>