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An opinion poll, often simply referred to as a survey or a poll (although strictly a poll is an actual election), is a human research survey of public opinion from a particular sample. Opinion polls are usually designed to represent the opinions of a population by conducting a series of questions and then extrapolating generalities in ratio or ...
An open-access poll is a type of opinion poll in which a nonprobability sample of participants self-select into participation. The term includes call-in, mail-in, and some online polls. The most common examples of open-access polls ask people to phone a number, click a voting option on a website, or return a coupon cut from a newspaper. By ...
The term benchmark, originates from the history of guns and ammunition, in regards to the same aim as for the business term: comparison and improved performance. The ...
Benchmarks can involve other parts of your life, too. If you're buying a home, for example, you'd do well to compare it with the rest of the neighborhood, to make sure it's not the best or worst ...
Benchmarking is sometimes referred to as 'post-stratification' because of its similarities to stratified sampling.The difference between the two is that in stratified sampling, we decide in advance how many units will be sampled from each stratum (equivalent to benchmarking cells); in benchmarking, we select units from the broader population, and the number chosen from each cell is a matter of ...
For polls conducted on the internet, there is no comparable mechanism for drawing a random sample of all email addresses or other online accounts. YouGov approaches this problem by recruiting a large panel of internet users who have agreed to participate in online surveys.
The polls-only model relied only on polls from a particular state, while the polls-plus model was based on state polls, national polls and endorsements. For each contest, FiveThirtyEight produced probability distributions and average expected vote shares according to both models.
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