Unverified50% confidenceEventExact time
In the 2016 U.S. presidential election, the national-level polling average error was approximately 2 percentage points; Hillary Clinton won the national popular vote, and the problems were mainly found in state-level polls in Wisconsin, Michigan, and Pennsylvania, which underestimated the turnout of white voters without a college degree.
1
Sources
50%
Confidence
Long-term
Relevance
8/4/2026
First Seen
Sources
误差范围是什么意思？教你正确解读民调数据的准确性
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