You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <random>
      <page id="983" ns="0" title="Beats By Just Dr Dre Headsets Get You To Audio Entire world" />
      <page id="2783" ns="0" title="Purchasing Cheap Nike Free At On the web Store" />
    </random>
  </query>
</api>