Numbers, Facts and Trends Shaping Your World

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    Video: Estimating Europe’s unauthorized immigrant population

    A new Pew Research Center analysis estimates that at least 3.9 million unauthorized immigrants – and possibly as many as 4.8 million – lived in Europe in 2017. Learn how we conducted the first comprehensive estimate of Europe’s unauthorized immigrant population in over a decade.

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    Video: Can we still trust polls?

    Recent events – including the 2016 presidential election and Brexit – have rattled public confidence in polls. But this video explains why well-designed polls can still be trusted and remain an important way to measure public opinion.

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