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Industrial A/B Testing in 2026: Bayesian Methods, CUPED, and Lessons from Meta and Statsig
How top companies like Meta and Statsig run A/B testing at scale — and how the FeatBit Release Decision Agent implements those principles. A practitioner's review covering Bayesian decision frameworks, CUPED variance reduction, sequential testing and peeking, multi-armed bandits, and the feature flag–experiment unification that separates industrial experimentation from spreadsheet-driven A/B tests.
AB TestingFeature FlagsExperimentation Platform
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