How many NYC restaurants get As on their health inspections?

August 15, 2011 | 0 Comments

Decision Science News is no stranger to misleading infographics in free New York newspapers. We could stop reading them entirely, but we find that playing "spot the infographic flaw" makes time fly on the subway. Recently we saw the above graphic in a paper called Metro. Can you spot the ... [Read more...]

Which chart is better?

August 10, 2010 | 0 Comments

CHART CRITICS, GRAPHICS CURMUDGEONS, COME ONE COME ALL Once upon a time there was this graph (graph 1). Andrew Gelman went all graphics curmudgeon on it, calling it an “ugly, sloppy bit of data graphics“, so it became this graph (graph 2). Now the question is, which is better: graph 2 or graph 3? ...
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The counterfactual GPS!

July 23, 2010 | 0 Comments

WHAT IF YOUR GPS TOLD YOU WHAT WOULD HAVE HAPPENED IF YOU HAD TAKEN THE OTHER ROUTE? Not long ago, your Decision Science News editor was planning a trip to a book group meeting along with another member. The monthly book group takes place in Cove Neck Long Island, about ...
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Baseball, basketball, and (not) getting better as time marches on

June 2, 2010 | 0 Comments

PROS ARE NOT GETTING BETTER AT FREE THROWS Rick Larrick recently told Decision Science News that baseball players have been getting better over the years in a couple ways. First, home runs and strikeouts have increased. The careless or clueless reader might note that this is curious, for from the ...
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Tipping heuristics

April 28, 2010 | 0 Comments

INCREDIBLY SIMPLE CALCULATIONS MADE SIMPLE Yes, we all know how to calculate 15% or 20% exactly, but it’s fun to use tipping heuristics and even more fun to make crowded graphs of how they compare to each other. (Sorry for the junky chart. Open for suggestions, in the words of Tom ...
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Your flight is moving …

March 1, 2009 | 0 Comments

THE VALUE OF NOT FOLLOWING INSTRUCTIONS As Shane Frederick has noted, if you say “A bat and a ball cost $1.10. The bat costs $1 more than the ball. How much is the ball?”, you will notice that the vast majority of your friends will say “10 cents” instead of the correct “5 cents”, ...
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