_:n8e353a501fa54221b25d8e6d77ae1a2dxb6
<http://schema.org/reviewBody>
"The data sets are very hard to understand. The teacher should spend more time to explain the data set before assigning excesses and quiz with them.  It took me two courses to understand what Dognition is doing (the video from the CEO is a very bad introduction, he did not explain the company very well).\n  When you ask questions in the course discussion forum, NO ONE answers your questions.   "
<https://mx.coursera.org/learn/analytics-mysql/reviews>