Andrew Gelman

Andrew Gelman is a professor of statistics and political science at Columbia University. His books include Bayesian Data Analysis; Red State, Blue State, Rich State, Poor State; and Teaching Statistics: A Bag of Tricks.

Why America Isn't as Polarized as You Think

Why America Isn't as Polarized as You Think

Studies show that, despite what we believe, Americans don't cluster so neatly into groups according to their political views More »

How Baseball Is Different From Politics

How Baseball Is Different From Politics

Explaining Palin's decline in popularity by analogy to the statistical scoring methods of the ball game More »

The Biggest Story in Photos

Protests Spread Across Brazil

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