Calyampudi Radhakrishna Rao

Infobox_Scientist
name = C. R. Rao

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caption = Calyampudi Radhakrishna Rao FRS
birth_date = Birth date and age|1920|9|10|mf=y
birth_place = Hadagali, State of Mysore, India
residence = India
nationality =
death_date =
death_place =
field = Mathematician
work_institution = Indian Statistical Institute
Cambridge University
Penn State University
alma_mater = Andhra University
Calcutta University
Cambridge University
doctoral_advisor = Ronald Fisher
doctoral_students = Debabrata Basu
S. R. S. Varadhan
Ranajit Chakraborty
K. R. Parthasarathy
Ravindra Khattree, Dayanand N. Naik
known_for = Cramér-Rao bound
Rao-Blackwell theorem
prizes = Padma Vibhushan
National Medal of Science
S. S. Bhatnagar Prize
Guy Medal
footnotes =

Calyampudi Radhakrishna Rao (Kannada: ಕಲ್ಯಾಂಪುದಿ ರಾಧಾಕೃಷ್ಣ ರಾಯ ) FRS (born September 10, 1920) is a world-renowned Indian statistician and currently professor emeritus at Penn State University. He was born in Hadagali, in the state of Karnataka, India.

He received an M.S. degree in mathematics from Andhra University and an M.S. degree in Statistics from Calcutta University in 1943.

Rao worked at the Indian Statistical Institute and the Anthropological Museum in Cambridge before acquiring a Ph.D. degree at King's College in Cambridge University under R.A. Fisher in 1948, to which he added a Sc.D. degree, also from Cambridge, in 1965.

Among his best-known discoveries are the Cramér-Rao bound and the Rao-Blackwell theorem both related to the quality of estimators. Other areas he worked in include multivariate analysis, estimation and differential geometry.

Rao is a Wilks and Mahalanobis medalist; a member of eight National Academies in India, the United Kingdom, the United States, and Italy; he has received dozens of medals, citations, awards, and other honors for his contributions to statistics and science. Rao was awarded the United States National Medal of Science, that nation's highest award for lifetime achievement in fields of scientific research, in June 2002.

Areas of research contributions of Professor Rao include

* Estimation theory
* Statistical inference and linear models
* Multivariate analysis
* Combinatorial design
* Biometry
* Mathematical genetics
* Generalized matrix inverses
* Functional equations

Awards & Medals:

* Government of India awarded him Padma Vibhushan.
* President George W. Bush, on June 12, 2002, decorated him with the National Medal of Science
* Wilks Memorial Award of the American Statistical Association
* Guy Medal in Silver of the Royal Statistical Society
* Meghnad Saha Medal of the Indian National Science Academy
* S. S. Bhatnagar Award
* JC Bose Gold Medal of Bose Institute, and
* Mahalanobis Centenary Gold Medal of the Indian Science Congress.

In his honor:
* The Pennsylvania State University has established C. R. and Bhargavi Rao Prize in statistics,
* Osmania University has founded C.R. Rao Advanced Institute for Mathematical and Computer Sciences (AIMCS).

ee also

*Cramér-Rao bound
* Khatri-Rao product

References

* [http://www.mrs.umn.edu/~sungurea/introstat/history/w98/Rao.html UMN]
* [http://www.amstat.org/about/statisticians/index.cfm?fuseaction=biosinfo&BioID=13 Amstat]
* M. H. DeGroot, A Conversation with C.R. Rao, Statistical Science, 2 (1987), 53-67.

External links

* [http://www.stat.psu.edu/people/faculty/crrao.html Prof. Rao's page at Penn State]
* [http://korora.econ.yale.edu/et/interview/rao.pdf ET Interviews: Professor C. R. Rao] on the [http://korora.econ.yale.edu/et/ Econometric Theory] page.
* [http://www.royalsoc.ac.uk/DServe/dserve.exe?dsqIni=Dserve.ini&dsqApp=Archive&dsqCmd=show.tcl&dsqDb=Catalog&dsqPos=0&dsqSearch=RefNo='EC/1967/22' Royal Society citation 1967]
* [http://www.amstat.org/awards/index.cfm?fuseaction=wilks-cites Rao was awarded the Samuel S. Wilks Award in 1989]

For Rao’s PhD students see
* [http://www.genealogy.math.ndsu.nodak.edu/html/id.phtml?id=40000 Mathematics Genealogy Project]

For the Cramér-Rao inequality and the Rao-Blackwell theorem see the relevant entries on
* [http://members.aol.com/jeff570/mathword.html Earliest Known Uses of Some of the Words of Mathematics]

Photograph of Rao with Harald Cramér in 1978
* [http://www.york.ac.uk/depts/maths/histstat/people/rao.gifC. R. Rao] from the [http://www.york.ac.uk/depts/maths/histstat/people/welcome.htm PORTRAITS OF STATISTICIANS]
* [http://www1.elsevier.com/homepage/sac/mathweb/rao.html George Bush awarding Rao the National Medal of Science]

Persondata
NAME= Rao, C. R.
ALTERNATIVE NAMES= Rao, Calyampudi Radhakrishna
SHORT DESCRIPTION= Indian- American mathematician
DATE OF BIRTH= September 10, 1920
PLACE OF BIRTH= Hadagali, Karnataka, India
DATE OF DEATH=
PLACE OF DEATH=