Supported by the following organizations
This is to certify that Alex Shafer successfully completed and received a passing grade in PH125.3x: Data Science: Probability a course of study offered by HarvardX, an online learning initiative of Harvard University.
Noted by
Rafael Irizarry
Professor of Biostatistics Harvard T.H. Chan School of Public Health
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- Verified Certificate Issued October 1, 2026
- Valid Certificate ID 7acf8d4e80bf4cde8d58881d94471397