Rohit Rao successfully completed the online course "Data Visualization and Communication with Tableau", an online non-credit course authorized by Duke University and offered through Coursera. The certificate is signed by Daniel Egger, Executive in Residence and Director of the Center for Quantitative Modeling at Pratt School of Engineering, and Jana Schaich Borg, a Post-doctoral Fellow in Psychiatry and Behavioral Sciences, confirming Rohit Rao's identity and participation in the course.