Blac Chyna Accepted to br Online Harvard Business School According to TMZ, Chyna will start taking an br online business analytics course on May 29. TMZ obtained br a copy of her br acceptance letter. The eight-week, 40-hour course costs br $1,500 and will result in a certificate. Blac Chyna, to TMZ Blac Chyna, to TMZ According to TMZ, some of the things br Chyna will learn in the class include: Recognizing trends, detecting outliers br and summarizing data sets.