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From | Erasmo Giambona <e.giambona@gmail.com> |
To | statalist <statalist@hsphsun2.harvard.edu> |
Subject | st: Average of Sample vesus Sub-Samples |
Date | Fri, 19 Mar 2010 13:09:26 +0100 |
Dear Statalisters, Is it possible that the arithmetic average of a sample is larger than the averages of two sub-samples containing overall all the observations of the full samples? Any thoughts would be appreciated, Erasmo * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/