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4 sourced facts about surveys, polling and public-opinion research itself, each with the context behind the number. 4 more are in today's round and appear here after it closes.
Going deeper
The famous 1936 Literary Digest poll surveyed over 2 million people but got the presidential result wrong. Who did it wrongly predict would win?
AnswerAlf Landon
The poll's huge sample was badly biased toward wealthier respondents, so Roosevelt actually won in a landslide.
Source: Wikipedia, George Gallup (2024) en.wikipedia.org
George Gallup correctly called that same 1936 election using how many respondents?
Answerabout 50,000
A much smaller but carefully sampled group beat a poll 40 times its size, proving sampling method matters more than raw numbers.
Source: Wikipedia, George Gallup (2024) en.wikipedia.org
About how large is the global market research industry, which produces most surveys and polls?
Answerabout $150 billion
Market research is a sprawling global industry that includes everything from political polling to product taste tests.
Source: Wikipedia, market research (2025) en.wikipedia.org
Expert level
Where was one of the first modern exit polls conducted, in February 1967?
Answerthe Netherlands
Exit polling — asking voters how they voted right after they leave the booth — became a global staple of election-night coverage after this.
Source: Wikipedia, exit poll (2024) en.wikipedia.org
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