Probability, Statistics and ML
Statistical Learning (Stanford online)
http://www.jerrydallal.com/LHSP/LHSP.htm
immersive linear algebra
Machine Learning and AI
Probability Theory (MIT — Prof.Tsitsiklis)
ocw.mit.edu Course 6.041/6.431 (has the authoritative links to the "David Lynch" lectures plus lots of PDFs)
companion site (also in ocw.mit.edu) using the edX version of the videos
the "David Lynch" lectures on youtube
An Introduction to Statistical Learning with Applications in R
Stanford Lagunita version of the course
textbooks used (and also another version of the course lecture videos)
Z statistics