An interactive to explain histograms, for normal people

Histograms require some statistical knowledge to grasp, and without the tidbits, the distribution chart looks like any other bar chart. So much more though. They can show a lot about your data, and statisticians start nearly every analysis with at least one. Aran Lunzer and Amelia McNamara provide a visual essay to explain how they work, so that you too can reap the rewards.

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Pizza Place Geography

Most of the major pizza chains are within a 5-mile radius of where I live, so I have my pick, …

The Changing American Diet

See what we ate on an average day, for the past several decades.

Marrying Age

People get married at various ages, but there are definite trends that vary across demographic groups. What do these trends look like?

Watching the growth of Walmart – now with 100% more Sam’s Club

The ever so popular Walmart growth map gets an update, and yes, it still looks like a wildfire. Sam’s Club follows soon after, although not nearly as vigorously.