For a randomly sampled poll of 1,000 people, the margin of error is typically about what?
Answerabout ±3%
Margin of error shrinks as sample size grows, but not in a straight line.
Source: Wikipedia (Opinion polling) (2024) en.wikipedia.org
Society · Facts & sources
Polls facts & stats
4 sourced facts about opinion polls and exit polls, each with the context behind the number. 4 more are in today's round and appear here after it closes.
The basics
Going deeper
About how many people are in YouGov's standing online panel worldwide?
Answerabout 29 million
YouGov recruits its poll respondents from this giant standing panel rather than calling random phone numbers.
Source: Wikipedia (YouGov) (2024) en.wikipedia.org
Expert level
For the 2020 U.S. election, about how many in-person Election Day voters did the National Election Pool's exit poll interview?
Answerabout 7,774
Exit polls interview a sample of voters as they leave randomly chosen polling places, then weight the results.
Source: Wikipedia (Exit poll) (2020) en.wikipedia.org
That same 2020 exit poll also added phone interviews with early and absentee voters -- about how many?
Answerabout 4,919
As more Americans vote early or by mail, modern exit polls add phone interviews to the traditional in-person approach.
Source: Wikipedia (Exit poll) (2020) en.wikipedia.org
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