Differentiate population from sample

Answer 1

A population is all of a particular group, while a sample is only a portion of that group.

I searched Google under the key words "population sample" to get these possible sources:

http://score.kings.k12.ca.us/lessons/wwwstats/population.html
http://www.stats.gla.ac.uk/steps/glossary/basic_definitions.html
http://www.ltcconline.net/greenl/courses/102/Statistics/population_sample_and_data.htm
http://en.wikipedia.org/wiki/Sampling_(statistics)

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

I hope this helps. Thanks for asking.