Linear Algebra and Calculus refresher
https://stanford.edu/~shervine/teaching/cs-229/refresher-algebra-calculus
Probabilities and Statistics refresher
https://stanford.edu/~shervine/teaching/cs-229/refresher-probabilities-statistics
https://stanford.edu/~shervine/teaching/cs-229/
https://cs229.stanford.edu/syllabus.html
https://cs229.stanford.edu/syllabus-spring2019.html
https://cs229.stanford.edu/syllabus-summer2019.html
https://cs229.stanford.edu/syllabus-fall2019.html
https://www.coursera.org/learn/machine-learning
https://stanford.edu/~shervine/teaching/cs-230/
https://cs230.stanford.edu/syllabus/
https://www.coursera.org/specializations/deep-learning