Append to all email addresses. For personal circumstances or sensitive matters, please use the staff email address, which is monitored only by the instructors and a few lead TAs.

Note: Consult the calendar for the most up-to-date office hours.


Ramesh Sridharan

Ramesh SridharanInstructor


Alexander Strang

Alexander StrangInstructor


Course Staff

Ziyi Ding

Ziyi Dinghe/himTA


Hey! I’m Ding and I’m a senior majoring in Applied Math and Data Science. Feel free to come talk to me about anything!

Tina Chen

Tina Chenshe/herTA


Hi Everyone! I’m Tina, a senior majoring DS + Stats. Feel free to reach out to me for any questions! :)))




Hello! I’m a student in the Statistics Department. I enjoy reading, learning, teaching, and research. Feel free to ask me about classes, research, book recommendations, or anything else!

Michelle Chang

Michelle Changshe/herTutor


Hey! I’m a 4th year studying Data Science & Business. I love going on coffee runs and finding new brunch spots with friends :) Feel free to reach out and am very excited to meet everyone!

Lei Shi

Lei Shihe/himTA


Hi, I am a fourth-year Ph.D. student in Berkeley Biostatistics. I’m passionate about stats and data science. Hope you’ll enjoy this class!

Kitty Wang

Kitty Wangshe/herTA


Hi everyone! My name is Kitty (Ziyi), and I’m a fourth year studying data science and economics. I love watching movies, taking naps, and going to the gym when I’m free. Looking forward to meeting you all!

Ezinne Nwankwo

Ezinne Nwankwoshe/herTA


Hi! I’m a PhD student studying theory of machine learning and applied data science. I’m from Los Angeles and I love music, movies, and putting together lego flower bouquets. Looking forward to helping out with Data 102 this spring :)

Bruce Xu

Bruce Xuhe/himTutor


Hi there! I’m a senior majoring in CS and Statistics. In my free time, I love doing sports, especially soccer. Data 102 is one of my favorite courses at Berkeley and hope you guys would enjoy it!

Bella Chang

Bella Changshe/herTutor


Hello, nice to meet you all! :D I’m a senior from Seattle studying Data Science and Public Policy. Besides data I love running, cooking & doing puzzles. 102 was one of my favorite classes and I’m excited to be a part of your journeys too.

Aesha Gandhi

Aesha Gandhishe/herTutor


Hey, I’m Aesha! I’m a junior from North Carolina studying Data Science and I enjoy hiking, reading, listening to music, and spin classes! Excited to meet y’all :)