7-Eleven Launches First API And It’s Not for Slurpees(blog.programmableweb.com)
blog.programmableweb.com
7-Eleven Launches First API And It’s Not for Slurpees
http://blog.programmableweb.com/2012/08/30/7-eleven-launches-first-api-and-its-not-for-slurpees/
1. Patrons of 7-eleven represent a rather specific demographic, which means this "poll" will have a heavy selection bias.
2. In a well-designed poll, each subject only votes once. Here, every time you buy a coffee, you submit a new vote. That doesn't work if one side drinks more coffee than the other side...