Numbers, Facts and Trends Shaping Your World

Search results for: “polls”


  • report

    Methodology

    Surveys conducted June 8-18, 2017 and June 27-July 9, 2017 Most of the analysis in this report is based on two telephone surveys conducted June 8-July 9, 2017. The first survey includes interviews conducted June 8-18, 2017 among a national sample of 2,504 adults, 18 years of age or older, living in all 50 U.S. […]

  • report

    3. Variability of survey estimates

    While previous sections of this report have focused on the kinds of systematic biases that may be the largest worry when it comes to public opinion polls, the variance (or precision) of estimates is important as well. Pollsters most commonly talk about precision in terms of the “margin of error” (MOE), which describes how much […]

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