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Facts · Guess the stat

How well do you know polling and surveys?

Guess the real numbers behind how surveys and polls work, see how everyone else guessed, and get the source.

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Survey response rates in recent years have declined to about what level?

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Survey by the numbers

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about +/-3%

For a poll of about 1,000 people, what margin of error does that sample size typically produce?

A sample of 1,000 respondents typically yields a margin of error around 3 percentage points at a 95% confidence level.

Source: Wikipedia, Opinion poll (2024) en.wikipedia.org

about 10,000

To shrink a poll's margin of error down to about plus/minus 1%, roughly how many respondents are needed?

Cutting the margin of error to around 1% requires a sample roughly ten times larger than a typical 1,000-person poll.

Source: Wikipedia, Opinion poll (2024) en.wikipedia.org

France

In 1938, Jean Stoetzel founded IFOP, described as the first survey institute of its kind, in which country?

IFOP, founded in Paris in 1938, is considered the first European survey research institute.

Source: Wikipedia, Opinion poll (2024) en.wikipedia.org

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Each question asks you to guess a real number about surveys, polling and public-opinion research. After you answer you see how everyone else guessed, then the real figure and where it comes from.

How is the daily round scored?

Four stats and one opinion poll. A correct guess earns 100 points plus up to 50 for speed, with a combo bonus for answers in a row. The range next to the right answer earns 40. Opinion polls earn 25 for having your say, and nailing every stat adds 150.

Where do the numbers come from?

Every stat links to its source, such as government statistics agencies, research organizations and industry groups. Figures are checked against the source before they go live.

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