Experimentation, Bayesian Statistics, Engineering, Data Science, Ab Testing.
users to the variant. Let Y represent the count of converted users in the variant. Statistically, Y follows a Binomial distribution, expressed as Y | θ ∼ Binomial(N, θ) We choose to model the conversion rate θ ∈ [0, 1] as a Beta distribution θ ∼ Beta(α, β) The Beta distribution is a convenient