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Beta-binomial distribution

Definition
AI-generated

Compound count model mixing binomial with beta rate—overdispersed alternative to plain binomial read counts.

Why it matters in GWAS

Statistical concepts underpin GWAS significance, effect estimation, relatedness random effects, multiple testing, fine-mapping priors, and post-GWAS multivariate methods.

Example usage

"Allele-specific expression counts were modeled with a beta-binomial distribution to account for overdispersion beyond simple binomial sampling."

References

  • Casella G, Berger RL. (2002). Statistical Inference. Duxbury Press.
  • Wasserman L. (2004). All of Statistics. Springer.

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