Can people comment as to the quality of this article? Would it be a good place for a refresher on statistics? Are there any other such projects that people can recommend?
I like the way it has a strong Python focus.
I like the way it has a strong Python focus.
I don't know of good stats books focusing on Python, but I'm sure there are plenty. "An Introduction to Statistical Learning" is free online [1] but it emphasizes R and has very little overlap, so I don't know if it addresses your needs, but it's very good.
It looks like more of an ebook and it seems to cover most of the essentials in your typical undergrad course + bootstrapping and intro to bayesian. From what I scanned it might be a little slow if you're just looking for a stats refresher -- depending on your level of experience I'd recommend the numpy and pandas docs as a "next step up" from the link (and maybe a bit more practical IMO).