If population size (N) = 1,200 and the proportion of subjects needed (p) = 0.5 and the acceptable amount of error (B) = 0.05, then sample size (n) = 400. 200. 300. 600._______________ refers to the flatness or peakedness of one distribution in relation to another distribution. Correlation Skewness Central tendency Kurtosis_______________ refers to the flatness or peakedness of one distribution in relation to another distribution. Correlation Skewness Central tendency Kurtosis