This certificate verifies that Yan Xie successfully completed and received a passing grade in DS101X: Statistical Thinking for Data Science and Analytics, a course offered by ColumbiaX through edX. The certificate is signed by the Director of the Data Science Institute at Columbia University, the Associate Director of the Data Science Institute, and professors from Columbia University's Department of Industrial Engineering and Operations Research and Department of Statistics.

1. 12/5/2016 ColumbiaX DS101X Certificate | edX
https://courses.edx.org/certificates/bdfc4876944b4d7990d886bcc1e6d68b 1/1
V E R I F I E DCERTIFICATE of ACHIEVEMENT
This is to certify that
YAN XIE
successfully completed and received a passing grade in
DS101X: Statistical Thinking for Data Science
and Analytics
a course of study offered by ColumbiaX, an online learning initiative of Columbia
University through edX.
Kathy McKeown
Director of the Data Science Institute
Henry and Gertrude Rothschild Professor of Computer
Science
Columbia University
Patricia Culligan
Associate Director of the Data Science Institute
Professor of Civil Engineering
Columbia University
Garud Iyengar
Professor of Industrial Engineering and
Operations Research, Chair of the Department
Columbia University
Tian Zheng
Associate Professor of Statistics
Columbia University
VERIFIED CERTIFICATE
Issued December 5, 2016
VALID CERTIFICATE ID
bdfc4876944b4d7990d886bcc1e6d68b