Simulation shows why polls don’t always match future results

Posted to Infographics  |  Tags: , ,  |  Nathan Yau

With election season in full swing, as far as the news is concerned at least, we get to see poll after poll in the beginning of a voting day and then reports the next day about which ones were wrong. Based on the news alone, it feels like almost every poll is just plain wrong. Maarten Lambrechts shows what’s going on here with Rock ‘n Poll. It simulates a poll and then multiple polls, showing how small differences in the numbers can seem like a lot once the voting results come in.

Favorites

Real Chart Rules to Follow

There are rules—usually for specific chart types meant to be read in a specific way—that you shouldn’t break. When they are, everyone loses. This is that small handful.

Reviving the Statistical Atlas of the United States with New Data

Due to budget cuts, there is no plan for an updated atlas. So I recreated the original 1870 Atlas using today’s publicly available data.

A Day in the Life of Americans

I wanted to see how daily patterns emerge at the individual level and how a person’s entire day plays out. So I simulated 1,000 of them.

Who is Older and Younger than You

Here’s a chart to show you how long you have until you start to feel your age.