We are starting a new Data Science program in the Department of Mathematics and Statistics at Bowling Green State University. I’ll use this blog to talk about interesting issues related to Data Science and give links to interesting graphs and data science articles.

One topic in my current “Computing with Data” course is statistical graphics and I’ll give attention to good and poor graphs in the news.

#### A Good Graph

The New York Times often provide interesting graphical displays. This article shows an interesting plot relating the body fat and BMI for 5000 adults. What I especially like is the use of guiding lines to highlight discrepancies between the two measures to show the “healthy obese” and “skinny fat” groups.

#### Improving a Bad Graph

For the last couple of years, I’ve been participating in a book that describe the use of R to learn about baseball. In today’s post, I show a famous baseball graph by Stephen Jay Gould and show an improved graphical display that gives a better message about how the standard deviations of batting averages have been changing over time.