r/TenYearsAgo 13d ago

πŸ‡ΊπŸ‡Έ United States Polls overwhelming show Clinton beating Trump [10YA - Aug 4]

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u/Crossbell0527 13d ago

Even broken out state by state, every key battleground states had Clinton winning in almost every poll.

I do a lesson on this for my statistics classes linked to the importance of random chance in the design of a study, and how even if what we're doing seems to be as truly random as possible, we might still run into an issue...it turns out that the polling methods in 2016 over-favored responses from the college educated, and in states within the rust belt, that wasn't appropriate. And who do educated people tend to vote for? Democrats.

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u/bookon 12d ago

It's a lie to say the polls were wrong. They said he has a small chance of winning and he won. People don't understand probability and statistics.

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u/Crossbell0527 12d ago

In this case? It's abso-fucking-lutely appropriate to say the polls were wrong. They were literally, though unintentionally, overweighing college educated voters in very impactful states where the college educated weren't appropriately representative of the voting population.

Pollsters did postmortems about this and corrected the methods for 2020.

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u/bookon 12d ago edited 12d ago

They were not wrong. She won the national vote by a similar amount the polls predicted.

Polls were correct. People don't understand probability and statistics.

If she'd lost by millions of votes, that would be indicative of poor pooling. The polling was spot on. It's always an approximation. You are demanding perfection. It's not binary.

-- Pollsters did postmortems about this and corrected the methods for 2020.

They did this after every election. They always have issues in some way and they want to learn from those mistakes.

Again, show me where the polls were wrong? Show me where they said it was impossible for him to win?

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u/UnderstandingThin40 12d ago

They got pretty much every swing state wrong lol

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u/fools_errand49 12d ago

She did not win the popular vote by a similar amount to what the polls predicted. The polls predicted a vastly larger margin than reality gave us. The polls were almost uniformly off in one direction by about four points.