DataScienceSpecialization/courses — pull request #55 by leard (2014-08-04 14:07:10+00:00)
Title: Update RMDs 01_04 and 02_01

I've corrected the word "towvards" from the slide 01_04 page 2, and the equation from slide 02_01 page 13, changing the exponent from {X_ip^2} to {X_ip}^2