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StatsTest Blog

Experimental design, data analysis, and statistical tooling for modern teams. No hype, just the math.

StatsTest
DistributionsJan 26New

Comparing ARPU and ARPPU: Segmentation vs. Modeling Approaches

How to properly analyze revenue per user metrics in A/B tests. Learn the statistical pitfalls of ARPU vs. ARPPU, when to segment, and how to avoid Simpson's paradox.

StatsTest
DistributionsJan 26New

Why Revenue Is Hard: Log-Normal Distributions and Heavy Tails

A deep dive into why revenue metrics are statistically challenging. Learn about log-normal distributions, heavy tails, whale effects, and practical approaches to analyzing revenue in A/B tests.