>Related
          Distributions</a>
        </h5>
<p>
          The geometric distribution is a special case of the <a class="link" href="negative_binomial_dist.html" title="Negative Binomial Distribution">Negative
          Binomial Distribution</a> with successes parameter <span class="emphasis"><em>r</em></span>
          = 1, so only one first and only success is required : thus by definition
          &#8192;&#8192; <code class="computeroutput"><span class="identifier">geometric</span><span class="spe