In what year did Gallup launch its World Poll, which now covers more than 160 countries?
Answer2005
The World Poll now represents more than 98% of the world's adult population.
Source: Wikipedia (Gallup (company)) (2005) en.wikipedia.org
Society · Facts & sources
Poll facts & stats
4 sourced facts about surveys, polls, and public opinion research, each with the context behind the number. 4 more are in today's round and appear here after it closes.
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Expert level
In that same 2014 Pew study, how did web-survey completion rates compare to phone-survey completion rates among people who were reached?
Answer64% (web) vs. 63% (phone)
The two modes performed almost the same once someone had already agreed to participate.
Source: Pew Research Center (2014) pewresearch.org
Singapore's election 'sample count' exit-poll-style results carry roughly what margin of error at a 95% confidence level?
Answerabout 4%
These quick sample counts give an early indicative result before official results are finalized.
Source: Wikipedia (Sampling (statistics)) (2015) en.wikipedia.org
Until 2018, Gallup's Daily Tracking survey conducted about how many interviews per day, 350 days a year?
Answer500 interviews a day
About 70% of those interviews were conducted by cellphone, 30% by landline.
Source: Wikipedia (Gallup (company)) (2018) en.wikipedia.org
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