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Old 06-17-2022, 03:56 PM
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toppcat toppcat is offline
Dave.Horn.ish
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Not to throw a spanner in the works but I ran the PSA pops, and just like the pops for the semi's they are smoother than the eBay data suggests. I accounted for HOF'ers and popular cards like the Wills and B. Robby so some of this is a little subjective but I think it's as a good a count as can be done. 42,165 cards are in the PSA pop.

There's still an anomaly or two though with the average number of impressions of a single card per row:

RECAP
A 450
B 382
C 393
D 412
E 397
F 414
G 390

St. Dev. 22.78784137
Mean 405.4285714

1 Std Dev 427.7878
1 Std Dev 382.2122
2 Std Dev 450.5757

Chucking the HOF, popular subjects, etc, the lowest pop card is Al Ferrara (293 pop) who heads the B Slit. Highest pop is the White Sox Team card (530 pop), in the D row. Data is all over the place, no pattern that I can find. The A Row headed by Pinson is just a hair under two standard deviations away from the mean, none of the other rows are over 1 standard deviation, although the B row is close the other way.

I'm trying to recall my statistics classes but I think two standard deviations means there's only a 5% or so chance it's random. So 4x3 and 3x4 looks possible but that A row is bugging me. It's almost like something happened mid press run and they had to swap in a row.

So D & F look like 4x rows, B, C, E & G like 3x rows and row A still taunts but is "at least" a 4x row.

Last edited by toppcat; 06-17-2022 at 10:25 PM.
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