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<p>[QUOTE=&quot;Owle, post: 1432710, member: 22004&quot;]Which statistical method does &quot;The Coin Dealer Newsletter&quot; use when determining which certified coins to raise prices on and which to lower prices on?</p><p><br /></p><p>There is this useful article on Wikipedia:&nbsp; <a href="http://en.wikipedia.org/wiki/Statistics" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://en.wikipedia.org/wiki/Statistics" rel="nofollow">http://en.wikipedia.org/wiki/Statistics</a></p><p><br /></p><p>If the Greysheets and Bluesheet truly represented all available data, we should see many more changes from week to week.&nbsp; As a subscriber it bothers me that their intellectual rigor is not greater.&nbsp; What would be necessary for their computer and statistical systems to be truly up to date on certified coins?[/QUOTE]</p><p><br /></p>

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