“Introduction to statistical learning” is probably the good goto resource to start with. There’s a decent open source book on probability which I use when I nee

“Introduction to statistical learning” is probably the good goto resource to start with. There’s a decent open source book on probability which I use when I need more in-depth understanding, but I don’t remember the title right now. One clarification: you don’t need an extreme understanding of stats, probability, linear algebra, imho. If you already took college level classes, you’re likely to be fine.