Supported by the following organizations
This is to certify that Rayan Zouaghi successfully completed and received a passing grade in PH525.1x: Statistics and R 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 August 11, 2026
- Valid Certificate ID 6d21eb8d0c7a4eb8aa3f9f506287d547