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Context: The 2023 International Prize in Statistics has been awarded to Calyampudi Radhakrishna Rao.

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• Calyampudi Radhakrishna Rao, an Indian-American statistician, has been awarded the 2023 International Prize in Statistics, the statistical equivalent of the Nobel Prize.

Contributions of Calyampudi Radhakrishna Rao

• In 1945, Professor Rao's article, "Information and Accuracy Attainable in the Estimation of Statistical Parameters," was published. It encouraged the rapid growth of contemporary statistics and their use in research.
• In 1948, one of Professor Rao's publications proposed a revolutionary general technique for evaluating hypotheses, which became known as the "Rao score test." This and two other tests devised by Jerzy Neyman, E.S. Pearson, and Abraham Wald are commonly referred to as the "holy trinity" of statistics.
• Professor Rao's work has influenced statistics, economics, genetics, anthropology, geology, national planning, demography, biometry, and medicine.

International Prize in Statistics

• It is awarded to an individual or group once every two years "for significant breakthroughs utilising statistics to improve science, technology, and human welfare."
• The prize is modelled after the Nobel Prize, Abel Prize, Fields Medal, and Turing Award, and it carries an $80,000 monetary award.
• The International Prize in Statistics and the COPSS Presidents' Award are the two top honours in statistics.

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