[Coda]

I failed out of differential equations and had to retake it, and even then I barely squeaked by. Taking a long time to get a degree says more about mental health circumstances than anything related to ability.

Statistics isn't hard in terms of the actual mathematics involved. The problem is that doing statistics right involves a lot of nitpicky stuff, because there are so many tools available and understanding the right one to use in a given situation takes experience that many professors aren't particularly good at transferring. (High school teachers get certified on their teaching skill. College professors are more focused on depth of knowledge, not their ability to educate effectively. It's a rather irritating problem.)