eagereyesTV Episode 1: The DataSaurus, Anscombe’s Quartet, and why summary statistics need to be taken with a grain of salt
When dealing with large amounts of data, we often use summary statistics like average, median, standard deviation, sum, etc. They’re useful because they actually hide data, they reduce the amount of information we need to look at to give us a sense of the data. But the same averages and can describe datasets that look vastly different.
This is the first video on my new YouTube channel, eagereyesTV. You can watch it below or click on this link to be taken to YouTube.
Things I cover in the video:
- Anscombe’s Quartet: https://eagereyes.org/criticism/anscombes-quartet
- Alberto Cairo’s DataSaurus: http://www.thefunctionalart.com/2016/08/download-datasaurus-never-trust-summary.html
- Justin Matejka and George Fitzmaurice’s awesome website about their 2016 CHI paper: https://www.autodeskresearch.com/publications/samestats
- The Jobless Rate for People Like You (requires Flash): https://archive.nytimes.com/www.nytimes.com/interactive/2009/11/06/business/economy/unemployment-lines.html
Let me know what you think! This is an experiment, and I want to know what people think works and what doesn’t. Please leave a comment below or on YouTube. And if you found it interesting, please consider subscribing on YouTube and giving it a ?.
Posted by Robert Kosara on September 16, 2019. Filed under eagereyestv.