Okay, for that stuff probability theory is too abstract. For basic basics, Edward Tufte has a $2 ebook that's pretty good: Data Analysis For Politics And Policy[1] and for terminology in causality, Rubin has a short open access paper[2]. For a freshman-stats level treatment, OpenStax college's book looks legitimate but I haven't actually read it carefully[3].
[1]: https://www.edwardtufte.com/tufte/ebooks [2]: https://projecteuclid.org/euclid.aoas/1223908042 [3]: http://cnx.org/contents/30189442-6998-4686-ac05-ed152b91b9de