For econ, I have found the videos on Marginal Revolution University to be a good introduction to the basic concepts for somebody with zero background on economics (specially the course on microeconomics, and to a lesser extent the course on macroeconomics).
For stats I am still searching, but when I was preparing for an interview with DeepMind they recommended me PennState’s online material for their stat414 and stat415 courses and they are alright.
Also, on the topic of probability, Jane Street’s guide to probability and making markets is an express introduction and refresher to the topic (more the probability part than the making markets part, though that one is interesting too)
For econ, I have found the videos on Marginal Revolution University to be a good introduction to the basic concepts for somebody with zero background on economics (specially the course on microeconomics, and to a lesser extent the course on macroeconomics).
For stats I am still searching, but when I was preparing for an interview with DeepMind they recommended me PennState’s online material for their stat414 and stat415 courses and they are alright.
Also, on the topic of probability, Jane Street’s guide to probability and making markets is an express introduction and refresher to the topic (more the probability part than the making markets part, though that one is interesting too)