Department of Mathematics
Statistics
Population / Sample

Population: P

                 Any finite or infinite collection of individual things - objects or event
             The universe or complete collection of object or events
              Set of all elements

              Examples: All registered voters in the USA
                               All ammunition produced on July 4th, 1999
                               All Bald Eagles in North America
   
Sample: n

                 A portion of a population, usually incomplete
              A subset of a set of all elements

              Examples: All random set of 12,000 registered voters in the USA
                               10% of all ammunition produced on July 4th, 1999
                               40 of the many Bald Eagles in North America