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C. R. Rao
Establishing fundamental ways to measure and improve statistical estimates.
Cramér–Rao bound · Rao–Blackwell theorem
- Born
- 10 September 1920
- Birthplace
- Hoovina Hadagali, India
- Died
- 22 August 2023
More people
C. R. Rao
C. R. Rao was an Indian-American statistician whose early research helped shape modern statistics. His work addressed how much information data contain and how reliably quantities can be estimated. He also trained generations of researchers in India and the United States.
Early life
Southern India
Born in present-day Karnataka and educated in several towns in Andhra Pradesh.
Mathematics to statistics
Studied mathematics at Andhra University, then statistics in Calcutta.
Career
- 1941
Indian Statistical Institute
Joined the institute in Calcutta and began his research career.
- 1948
Cambridge doctorate
Completed his PhD under statistician R. A. Fisher.
- 1950s–1970s
Research and training
Led research and training at the Indian Statistical Institute.
- 1979–1988
American universities
Moved to Pittsburgh and later joined Pennsylvania State University.
Contributions
Foundations of estimation
Published results now associated with the Cramér–Rao bound and Rao–Blackwell theorem.
Information geometry
Connected statistical models with geometric ideas.
Linear Statistical Inference
Published an influential textbook on statistical methods and applications.
Beyond research
Scientific service
Served as president of major international statistical societies.
Recognition at 102
Received the 2023 International Prize in Statistics for work published nearly eight decades earlier.
Sources & photo credit
Biography ↗Penn State remembrance ↗International Prize in Statistics ↗Photo: Prateek Karandikar. CC BY-SA 4.0 · Original image. Cropped and displayed in monochrome.