<p>In other words, they view the Subject GRE as a method of improving your image if other parts of your application leave something to be desired. If your overall application is strong and well representative of your ability, then just don’t submit your Subject Test scores when you do your ETS score reports if you feel that may devalue you as a candidate.</p>
<p>I personally am not familiar with Mathematics or Statistics Ph.D admissions, but I found this link at Penn’s Math department:</p>
<p>[Graduate</a> program data](<a href=“http://www.math.upenn.edu/grad/graddata.html]Graduate”>http://www.math.upenn.edu/grad/graddata.html)</p>
<p>They mention the average Advanced Math Subject Test of the GRE for their accepted and matriculating Ph.D candidates. Penn is not Harvard in regards to strength of department, but this might give you a good ball park of what is expected since most Ivys try to maintain comparable images/standards.</p>