about ±3%
For a poll of 1,000 people, what's the typical margin of error?
A sample of 1,000 respondents is the classic polling size because it gives a workable ±3% margin of error.
Source: Wikipedia, Opinion polling (2024) en.wikipedia.org
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Gallup's World Poll, launched in 2005, covers how many countries?

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about ±3%
A sample of 1,000 respondents is the classic polling size because it gives a workable ±3% margin of error.
Source: Wikipedia, Opinion polling (2024) en.wikipedia.org
1824
A straw poll tallying voter preferences for the presidential election is considered the earliest known opinion poll.
Source: Wikipedia, Opinion polling (2024) en.wikipedia.org
about 500 interviews a day
Gallup ran daily U.S. tracking polls of about 500 interviews a day, 350 days a year, for years.
Source: Wikipedia, Gallup (company) (2018) en.wikipedia.org
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