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Pearson correlation

Pearson correlation coefficient and covariance of two equal-length paired series. Rejected as a clean 400 if the lengths differ or either series has zero variance (correlation undefined).

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Our latest check (2026-10-11)

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Yes — valid x402 payment terms
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Paying buyers, last 30 days
2 (directory's own records)
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2
Category
Unclassified
Address
https://stats.openverbs.com/v1/correlation

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