Download or read book Geological Survey of Canada, Current Research (Online) no. 2000-F2 written by Keith Sircombe and published by Natural Resources Canada. This book was released on 2000 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Initial assessment and visual communication of the salient features of large sets of geochronological age data are commonly achieved with binned frequency histograms or probability density distributions. This paper describes the mathematical basis of traditional binned frequency histograms and probability density distributions, then compares & contrasts the advantages & limitations of both methods for displaying absolute age data. Important points related to the use of these diagrams as the principal means of communication of such data are noted.