how to explain the variance of a linear regression gwas method of explained variance what is the overline how to find overline for snp approximation variance equation what is the approximate variance of the regression line? gwas p-value sigma which linear regression model is true for overline what is meant by the approximation of explained variance of a linear model what is the value of epsilon what is the approximation of explained variance used to calculate the variance? what is the approximate variance explain a gaas regression what is the approximation of the variance what is the expected variance of overline regression what is the approximation for explain variance average variance of overline how to overline g0 in ghas what is beta_g which is a linear regression method of gwas