It is the most popular course on Coursera because it's ~3 hours of lectures and ~3 hours of study and it seems to be advertised for everyone who logs on to Coursera.
Andrew Ng's Course is 11 weeks and it's about ~5 hours a week and on top of that you'd really want to be quite able at High School Maths and have some programming background.
Andrew Ng's Course is 11 weeks and it's about ~5 hours a week and on top of that you'd really want to be quite able at High School Maths and have some programming background.