The figures below, from a study of healthy Taiwanese families, show regression lines (solid line) between parents height (x) and offspring height (y). The left-most figure (labeled B) is mid-parent height by height of their shortest son with regression line y = 48.32 0.74x. The right-most figure (labeled C) shows mother’s height by height of their tallest son with regression line y = 109.26 0.41x. Estimate heritability of (a) shortest son’s height and (b) tallest son’s height