Goodreads Fit от TSAstron

This addon enhances and analyses the ratings of goodreads.com by finding models for the distribution of votes. Each book's page gains the extended rating above the review section, and a small bar-chart, that can be clicked to display a variety of statistical models and their graphs.

The models include a simple "review bombing" detection, and statistical comparison using information criteria (like AIC and BIC). Description of the features is accessible by clicking on the addon's icon itself.