In statistics, a population is the group on which information is being gathered and analyzed. A sample is a representative selection of the population.

In statistics, a representative sample should be an accurate cross-section of the population being sampled. Although the features of the larger sample cannot always be determined with precision ...

This gave us a much larger sample to analyze, and made the estimates for Hispanics more precise. If we just stopped here, estimates for the total population would overrepresent Hispanics. Instead, we ...

We then used domain analysis to extrapolate the results in our sample of 3773 participants to the population of 115.4 million U.S. adults between the ages of 40 and 75 years who have ...

Communiqué on Major Data of 1% National Population Sample Survey in 2005. National Bureau of Statistics. 16 March 2006. Approved by the State Council, China carried out 1% National Population Sample ...

A population sample may comprise, randomly sampled apomictic dandelions (eg Lyman and Ellstrand, 1984; Menken et al, 1995; Van der Hulst et al, 2000).

For a subgroup such as Hispanics, who make up about 15% of the U.S. adult population, the sample size would be about 160 cases if represented proportionately.