I'd suggest going back to the original youtube[1] and course materials[2]. Coursera version is nothing but a hand-wavy watered down "feel good" version of the original class. I also really like the Caltech's take "Learning from data"[3]

[1] https://www.youtube.com/watch?v=UzxYlbK2c7E

[2] http://cs229.stanford.edu/

[3] http://work.caltech.edu/telecourse.html