span class="special">);</span>
<span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"scale (standard deviation) = "</span> <span class="special">&lt;&lt;</span> <span class="identifier">s</span> <span class="special">&lt;&lt;</span> <span class="identifier">endl</span><span class="special">;</span>
</pre>
<p>
            that outputs:
          </p>
<pre class="programlisting">scale (standard deviation) = 0.647201
</pre>
<p>
            showing that we need to redu