This is the current revision of
Margin of Error as edited by
TK (Talk | contribs) at
00:51, August 23, 2010. This
URL is a permanent link to this version of this page.
A margin of error is the percentage by which any estimate, such as a poll, is likely to be off. The most common is +/-3%. In most polls, the sample size of the poll is the largest contributing factor to the margin of error.