Really compassionate and generous with his time and grading. Tests were exactly like the study guide and in class examples, also let us bring an 8x11 cheat sheet to tests.

Ethan has been the worst instructor that I have ever encountered at UCSB. He never responded to my emails and his exams are ridiculously hard. He would provide us with a 17 questions study guide and then release the solutions to them the night before the exam. Also, his exams were nothing like the study guide. Do not take him!

Ethan was a great professor. 120A is a very difficult class because it is the intro to advanced probability and stats, where you learn the basics of pretty much everything in the field. This class was hard, but Ethans enthusiasm and constant help on discord and office hours helped me through it. I'd suggest him over anyone.