Nate Silver is the most well-known and well-regarded statistician when it comes to predicting electoral outcomes. He rose to prominence in 2008 when he accurately predicted 49 of 50 states’ election outcomes and was named one of TIME‘s most influential people. In 2010, his blog was incorporated into The New York Times, and in 2012 he correctly predicted all 50 states’ votes in the presidential election. The following year, he left the Times to focus on FiveThirtyEight, a data-driven journalism site with sections dedicated to politics, sports, and culture.
Recently, Silver has been in the news for predicting that Donald Trump has a 1-in-3 chance of winning the general election, despite many other respectable polling sites giving Trump only about a 10-15% chance of winning. This has caused some journalists to accuse Silver of skewing polls to favor Trump or overcompensating for predicting early on that Trump would not become the Republican nominee.
The weekend before the election, Silver took to Twitter to respond to his critics and defend the 1-in-3 odds. What do your students think? Does Silver’s claim that Trump has a shot at wining the presidency hold up?
Also, Obama had 49% of the vote, whereas Clinton has 45%. About 3x more undecideds.— Nate Silver (@NateSilver538) November 7, 2016
But mostly it's the Electoral College. Clinton underperforming Obama's 2012 forecast by *4 points* in the Midwest. That's a major liability. pic.twitter.com/inVXthqhez— Nate Silver (@NateSilver538) November 7, 2016
People don't debate the premises of 538 model (e.g. state errors correlated, undecideds=uncertainty). They just don't like the conclusions.— Nate Silver (@NateSilver538) November 7, 2016
Actually, one exception—there's good, healthy debate about how aggressive a model should be about chasing down swings early in the campaign.— Nate Silver (@NateSilver538) November 7, 2016
It's possible—I think likely, to be honest—that a model should be fairly conservative on swings early on but aggressive late.— Nate Silver (@NateSilver538) November 7, 2016
Nate Silver’s main audience is his 1.7 million Twitter followers, many of which it can be assumed read his writing and follow his analysis. He uses statistical jargon (“points,” “model,” “correlated,” “undecideds”) appropriate for such an audience.
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