emphasis"><em>v2</em></span>
          are the first and second degrees of freedom parameters of the distribution,
          <span class="emphasis"><em>x</em></span> is the random variate, <span class="emphasis"><em>p</em></span> is
          the probability, and <span class="emphasis"><em>q = 1-p</em></span>.
        </p>
<div class="informaltable"><table class="table">
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                  <p>
                    Function
                  </p>
            