Meet Maths Nobel Prize Winner C R Rao: The man who revolutionised statistics

Meet Maths Nobel Prize Winner C R Rao: The man who revolutionised statistics


Rao was the eighth of ten children born to a Telugu family in Bellary and studied at Andhra University, Calcutta University and Cambridge University.
Calyampudi Radhakrishna Rao, better known as C.R. Rao, who will receive the 2023 International Prize in Statistics, is an Indian-American mathematician. Because of his significant contributions to the field of statistics he will receive the prize considered equivalent to the Nobel Prize in the field.
Rao, who is considered as one of the pioneers of modern statistics, has worked in various areas, including multivariate analysis, sample survey theory, and biometry.
In 1920 Rao was born to a Telugu family in Hadagali, Karnataka. His schooling was done in Gudur, Nuzvid, Nandigama, and Visakhapatnam, in Andhra Pradesh. Further, he completed his MSc in mathematics from Andhra University and in 1943 went to Calcutta University for pursuing MA in statistics.
Rao went to UK for obtaining a PhD degree, where he worked under the supervision of Sir Ronald A, later in 1965 he earned a degree in DSc from King’s College at Cambridge University. As his first assignment, he worked at the Indian Statistical Institute and the Anthropological Museum in Cambridge. Rao returned to India and founded the Department of Statistics.
Later he held several important positions, as the Director of the Indian Statistical Institute, Jawaharlal Nehru Professor and National Professor in India, University Professor at the University of Pittsburgh and Eberly Professor and Chair of Statistics and Director of the Center for Multivariate Analysis at Pennsylvania State University.
Rao is currently a professor emeritus at Pennsylvania State University and Research Professor at the University at Buffalo. He has received many honours. In 1968 he was awarded the title of Padma Bhushan and Padma Vibhushan in 2001. He was awarded the National Medal of Science by President George W. Bush in 2002, and he was awarded the inaugural International Prize in Statistics in 2017.
C R Rao is credited with developing several statistical techniques, including the Cramer-Rao inequality, which is used to bound the variance of any unbiased estimator. He also developed the Rao-Blackwell theorem, which provides a means for transforming an estimate into a better — in fact, an optimal—estimate.
He has also made significant practical contributions to statistics. He has worked on a range of applied problems, including genetics, ecology, and social sciences. He has also played a major role in the development of sample survey methods in India.


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