Quote:
Originally Posted by RCFire82
James,
Quick rule of thumb I use when looking at psa's pop. report on Sweet Caporals is to use ratios. For example on the Abbaticchio (blue sleeves) above:
Let's say total Sweet Caporals graded is 160 (which is close) and 80 (or exactly half) have been identified with Factory numbers. I would say it's safe to say each Factory graded total, 460 25 (10 total), 460 30 (58 total), and 460 op (12 total) can be multiplied by 2. So one would expect to see an additional 10 460 fac 25's, 58 more 460 fac 30's, and 24 total 460 over prints when examining the 80 earlier non Factory labeled psa graded cards.
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Yeah, this is kind of how I think about it in my head, but I think the reason I wanted to do this project was just to see if my assumptions generally track across the board, or if there are weird outliers that may not really be known just be using the ratios/estimates. Plus, looking through old scans is actually kind of fun, to be honest.
Quote:
Originally Posted by Lobo Aullando
Also, one doesn't have to do a full census to get a good picture of the whole. A sample of 30 or so would get a pretty good estimate of what those ratios should be. (Picking every 17th card might be better than doing all the A name cards because it's less likely to encounter clustering.) It's even possible to get a good error range with that few.
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Sure, that is fine for estimates. And ballpark estimates are fine for most. I just really want to dig in here and see what kind of things I can uncover by methodically going through everything available. I do understand it is a bit insane
