CR Rao Death: How Did Mathematical Statistician Die?

The death of the great mathematician, CR Rao has triggered some reactions online as many have shown interest in what caused his death.

Calyampudi Radhakrishna Rao, FRS, commonly known as C. R. Rao, was an Indian-American mathematician and statistician. He was a professor emeritus at Pennsylvania State University and a Professor at the University at Buffalo. He was born on September 10th, 1920, in Huvina Hadagali, India.

C. R. Rao was the eighth of ten children born to a Telugu family in Hadagali, Bellary, Madras Presidency (now in Karnataka), India. His schooling was completed in Gudur, Nuzvid, Nandigama, and Visakhapatnam, all in the present state of Andhra Pradesh.

He received an MSc in mathematics from Andhra University and an MA in statistics from Calcutta University in 1943. He obtained a PhD degree at King’s College, Cambridge under R. A. Fisher in 1948, to which he added a DSc degree, also from Cambridge, in 1965.

What was the career history of C. R. Rao?

Rao first worked at the Indian Statistical Institute and the Anthropological Museum in Cambridge. Later, he held several important positions, including 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 Centre for Multivariate Analysis at Pennsylvania State University.

As Head and later Director of the Research and Training School at the Indian Statistical Institute for a period of over 40 years, Rao developed research and training programmes and produced several leaders in the field of Mathematics. On the basis of Rao’s recommendation, the ASI (The Asian Statistical Institute) now known as Statistical Institute for Asia and Pacific was established in Tokyo to provide training to statisticians working in government and industrial organizations.

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 theory, and differential geometry. His other contributions include the Fisher–Rao theorem, Rao distance, and orthogonal arrays. He is the author of 14 books and has published over 400 journal articles.

Rao has received 38 honorary doctoral degrees from universities in 19 countries around the world and numerous awards and medals for his contributions to statistics and science. He is a member of eight National Academies in India, the United Kingdom, the United States, and Italy.

Rao was awarded the United States National Medal of Science, the nation’s highest award for lifetime achievement in fields of scientific research, in June 2002. He was given the India Science Award in 2010, the highest honor conferred by the government of India in a scientific domain.

In 2013, he was nominated for the Nobel Peace Prize, along with Miodrag Lovric and Shlomo Sawilowsky, for their contribution to the International Encyclopedia of Statistical Science. He was most recently honored with his 38th honorary doctorate by the Indian Institute of Technology, Kharagpur, on 26 July 2014 for “his contributions to the foundations of modern statistics through the introduction of concepts such as Cramér–Rao inequality, Rao–Blackwellization, Rao distance, Rao measure, and for introducing the idea of orthogonal arrays for the industry to design high-quality products.”

He was the President of the International Statistical Institute, the Institute of Mathematical Statistics (USA), and the International Biometric Society. He was inducted into the Hall of Fame of India’s National Institution for Quality and Reliability (Chennai Branch) for his contribution to industrial statistics and the promotion of quality control programs in industries.

How did CR Rao die?
Rao at the Indian Statistical Institute, Chennai in April 2012

What was the cause of C. R Rao death?

The information given does not specifically state the actual reason for Dr. C.R. Rao’s demise on August 23, 2023, in the United States, at the age of 102. Although it is acknowledged that he passed away from a disease, little information is given on the illness’s precise characteristics.

The scientific world will never forget Dr. Rao’s unmatched contributions to the fields of mathematics and statistics, and his demise is a great loss for academics as well as other fields. His innovative work and ongoing influence in the fields of statistics and mathematics continue to resound despite the lack of concrete information regarding the cause of his mortality.

How did C. R. Rao?

On August 23, 2023, Dr. C.R. Rao, a renowned person in the fields of mathematics and statistics, passed away in the United States. He was 102 years old. Although the evidence at hand does not specifically state the condition that caused his death, it is certain that he passed away from disease. A towering figure in academia and research, Dr. Rao’s legacy is intricately entwined with his exceptional contributions to the fields of mathematics and statistics.



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