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<http://schema.org/reviewBody>
"This course significantly challenged my skills in programming, probability, machine learning and applied mathematics (eg Katz's backoff theory-equations).  The collaboration in the discussion forums and the information on-line is absolutely critical and is the only way you can succeed in this project.  I appreciate all the help from my classmates and from those who took the time to post helpful information on-line."
<https://mx.coursera.org/learn/data-science-project/reviews>