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Arithmetic Mean

Definition
AI-generated

Average of observed values—phenotype mean imputation and covariate centering reference point.

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

"Missing BMI values were imputed with the arithmetic mean within sex-by-age strata before fitting the baseline regression model."

References

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

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