A TRIVARIATE DISTRIBUTION FOR THE HEIGHT, WEIGHT, AND FAT OF ADULT MEN

Using exploratory data analysis, probability plots, scatterplots, and computer animations to rotate and visualize the data, we fit a trivari ate Normal distribution to data for the height, the natural logarithm of body weight, and the body fat for 646 men between the ages of 50 an d 80 years as reported by the medical staff of the U.S. Veterans Admin istration's ''Normative Aging Study'' in Boston, MA. Although these da ta do not include any children, women, or young men, the measurements represent the best data that we could find through a 4-year search. We believe that these data are well measured and reliable for men in the specified age range and that these data reveal an interesting statist ical pattern for use in probabilistic PBPK models.