In the 1980s Mr Groves supported the use of statistical sampling to estimate how many people the census misses.

ECONOMIST: The decennial census: The knock on the door | The

For plants that don't report emissions, the site relies on industry sources, precise engineering and fuel specifications and statistical models, to estimate CO2 releases.

NPR: Web Site Tracks Carbon Emission Sources

Russian statistical agency, Rosstat, published its first estimate of 2011 GDP growth Tuesday, revising 2010 numbers upward slightly to 4.3% from 4% compared to 2009.

FORBES: Russian Economic Growth Beats Estimates

The European Union's statistical agency said Wednesday that it was revising down its estimate for fourth-quarter GDP for the 16 nations that use the euro to flat, from 0.1% growth.

FORBES

It was more common for identical twins to both have Alzheimer's compared to non-identical, and a statistical analysis of risk rates in the groups gave the researchers their estimate of how significant genetic factors are.

BBC: NEWS | Health | Alzheimer's risk 'is 80% genetic'

Republicans spent much of the 1997 appropriations season battling the administration over its plan to use statistical sampling, a technique that uses data from the traditional head count to estimate the number of those who did not respond to census takers.

CNN: By Juliana Gruenwald, CQ Staff Writer