That may well be true. I have a tendency with pre-1837 records to only put in a christening date and not estimate a birth date. However, having said that I would expect that to affect both the by-century averages and the by-gender averages and it is the major discrepancy between these numbers that concerns me.
David On 16/12/2013 16:51, Eliz Hanebury wrote: > I wondered if you have a lot of people with no known birth date but who do > have a date of death. Legacy thinks that = 0 which will lower your age > stats a lot. > > Eliz > Not Today and Not without a Fight > (Anon) > > For all that has been, thanks. > For all that will be, yes. > (Dag Hammarskjold) > > > On Mon, Dec 16, 2013 at 7:04 AM, David Newton > <[email protected]>wrote: > >> Could one of you explain to me how the statistics are calculated? >> >> In my family file the average lifespan by century never exceeds 17 years >> whereas the average male and female lifespans are around 53 and 48 >> respectively. These figures seem to be inconsistent with each other but >> in the absence of how the calculations are done I cannot be sure what it >> is telling me. >> >> David >> >> >> >> Legacy User Group guidelines: >> http://www.LegacyFamilyTree.com/Etiquette.asp >> Archived messages after Nov. 21 2009: >> http://www.mail-archive.com/[email protected]/ >> Archived messages from old mail server - before Nov. 21 2009: >> http://www.mail-archive.com/[email protected]/ >> Online technical support: http://www.LegacyFamilyTree.com/Help.asp >> Follow Legacy on Facebook (http://www.facebook.com/LegacyFamilyTree) and >> on our blog (http://news.LegacyFamilyTree.com). >> To unsubscribe: http://www.LegacyFamilyTree.com/LegacyLists.asp >> >> >> > > > > Legacy User Group guidelines: > http://www.LegacyFamilyTree.com/Etiquette.asp > Archived messages after Nov. 21 2009: > http://www.mail-archive.com/[email protected]/ > Archived messages from old mail server - before Nov. 21 2009: > http://www.mail-archive.com/[email protected]/ > Online technical support: http://www.LegacyFamilyTree.com/Help.asp > Follow Legacy on Facebook (http://www.facebook.com/LegacyFamilyTree) and on > our blog (http://news.LegacyFamilyTree.com). > To unsubscribe: http://www.LegacyFamilyTree.com/LegacyLists.asp > > Legacy User Group guidelines: http://www.LegacyFamilyTree.com/Etiquette.asp Archived messages after Nov. 21 2009: http://www.mail-archive.com/[email protected]/ Archived messages from old mail server - before Nov. 21 2009: http://www.mail-archive.com/[email protected]/ Online technical support: http://www.LegacyFamilyTree.com/Help.asp Follow Legacy on Facebook (http://www.facebook.com/LegacyFamilyTree) and on our blog (http://news.LegacyFamilyTree.com). To unsubscribe: http://www.LegacyFamilyTree.com/LegacyLists.asp
