 |
 |
A cardinal rule of statistics as I remember is that the average of the averages is the average of all. This frequently simplifies calculations. Bob Anibal -----Original Message----- From: Janet Paterson <[log in to unmask]> To: Multiple recipients of list PARKINSN <[log in to unmask]> Date: Friday, September 18, 1998 4:54 AM Subject: QT: average >It is not necessarily true that averaging the averages >of different populations gives the average >of the combined population. > >Simpson's Paradox > > >janet paterson - 51/10 - almonte/ontario/canada >http://www.newcountry.nu/pd/members/janet/ >[log in to unmask] >