There is a course reader for CS109 [1]. You can download pdf version of this.

There is also book[2] for excellent caltech course[3].

[1] https://chrispiech.github.io/probabilityForComputerScientist...

[2] https://www.amazon.com/Learning-Data-Yaser-S-Abu-Mostafa/dp/...

[3] https://work.caltech.edu/telecourse