Since Tony Bennett got caught fixing the grade of his favorite charter school, he has loudly defended his actions and described the claims against him as vicious and unfounded.

In this post, mathematician Jordan Ellenberg of the University of Wisconsin explains how Bennett tried to protect his favorite school and how he distorted the truth afterwards.

Ellenberg writes:

“This was an act of astonishing statistical chutzpah. Suppose the syllabus for my math class said that the final grade would be determined by averaging the homework grade and the exam grade, and that the exam grade was itself the average of the grades on the three tests I gave. Now imagine a student gets a B on the homework, gets a D-minus on the first two tests, and misses the third. She then comes to me and says, “Professor, your syllabus says the exam component of the grade is the average of my grade on the three tests—but I only took two tests, so that line of the syllabus doesn’t apply to my special case, and the only fair thing is to drop the entire exam component and give me a B for the course.”

No excuses!