Calyampudi Radhakrishna Rao

Indian-American mathematician (1920–2023)
Person human Q711237
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Calyampudi Radhakrishna Rao

Summary

Calyampudi Radhakrishna Rao is a human[1]. His place of birth was Hoovina Hadagali[2]. He passed away in Amherst[3]. He worked as a mathematician[4], statistician[5], university teacher[6], and economist[7]. He ranks in the top 0.71% of human entities by monthly Wikipedia readership (143 views/month, #7,070 of 1,000,298).[8]

Key Facts

  • Born in Hoovina Hadagali[2], Calyampudi Radhakrishna Rao…
  • Calyampudi Radhakrishna Rao died in Amherst[3].
  • Calyampudi Radhakrishna Rao held citizenship in British Raj[9].
  • Calyampudi Radhakrishna Rao held citizenship in Dominion of India[10].
  • Calyampudi Radhakrishna Rao held citizenship in India[11].
  • Calyampudi Radhakrishna Rao held citizenship in United States[12].
  • Calyampudi Radhakrishna Rao worked as a mathematician[4].
  • Calyampudi Radhakrishna Rao worked as a statistician[5].
  • Calyampudi Radhakrishna Rao's professions included university teacher[6].
  • Calyampudi Radhakrishna Rao worked as an economist[7].
  • Calyampudi Radhakrishna Rao's field of work was mathematical statistics[13].
  • Calyampudi Radhakrishna Rao's field of work was mathematics[14].
  • Calyampudi Radhakrishna Rao's field of work was statistics[15].
  • Calyampudi Radhakrishna Rao's field of work was econometrics[16].
  • Calyampudi Radhakrishna Rao held the position of director[17].
  • Calyampudi Radhakrishna Rao held the position of chairperson[18].
  • Calyampudi Radhakrishna Rao held the position of chairperson[19].
  • Calyampudi Radhakrishna Rao held the position of chairperson[20].
  • Calyampudi Radhakrishna Rao held the position of chairperson[21].
  • Among Calyampudi Radhakrishna Rao's employers was University at Buffalo[22].
  • Among Calyampudi Radhakrishna Rao's employers was Pennsylvania State University[23].
  • Calyampudi Radhakrishna Rao was employed by Indian Statistical Institute[24].
  • Calyampudi Radhakrishna Rao was employed by Museum of Archaeology and Anthropology[25].
  • Among Calyampudi Radhakrishna Rao's employers was Indian Statistical Institute[26].
  • Among Calyampudi Radhakrishna Rao's employers was University of Pittsburgh[27].

Body

Origins and Family

Calyampudi Radhakrishna Rao's place of birth was Hoovina Hadagali[2].

Education

Educated at University of Calcutta[28], a state public university[29], in India[30], founded in 1857[31], headquartered in Kolkata[32]; Andhra University[33], a university[34], in India[35], founded in 1926[36]; Indian Statistical Institute[37], a research institute[38], in India[39], founded in 1931[40], headquartered in Baranagar[41]; King's College[42], a college of the University of Cambridge[43], in United Kingdom[44], founded in 1441[45], headquartered in Cambridge[46]; University of Cambridge[47], a collegiate university[48], in United Kingdom[49], founded in 1209[50], headquartered in Cambridge[51]; and Mrs. A.V.N. College[52], an academic institution[53], in India[54], founded in 1860[55]. Calyampudi Radhakrishna Rao's doctoral advisor was Ronald Fisher[56].

Career and Affiliations

Recorded occupations include mathematician[4], statistician[5], university teacher[6], and economist[7]. Fields of work include mathematical statistics[13], a branch of mathematics[57]; mathematics[14], an academic discipline[58]; statistics[15], an academic major[59]; and econometrics[16], an academic discipline[60]. Employers include University at Buffalo[22], a public research university[61], in United States[62], founded in 1846[63], headquartered in Amherst[64]; Pennsylvania State University[23], a public research university[65], in United States[66], founded in 1855[67], headquartered in Penn State University Park[68]; Indian Statistical Institute[24], a research institute[69], in India[70], founded in 1931[71], headquartered in Baranagar[72]; Museum of Archaeology and Anthropology[25]; and University of Pittsburgh[27]. Positions held include director[17], a profession[73] and chairperson[18], a type of position[74]. Doctoral students include Kalyanapuram Rangachari Parthasarathy[75], U. S. R. Murty[76], T. E. S. Raghavan[77], Sreenivasa Rao Jammalamadaka[78], Ravindra Khattree[79], and Yuehua Wu[80].

Recognition

Awards received include Fellow of the Royal Society[81], Wilks Memorial Award[82], Shanti Swarup Bhatnagar Prize for Science and Technology[83], National Medal of Science[84], India Science Award[85], and Padma Vibhushan in science & engineering[86].

Death and Burial

Calyampudi Radhakrishna Rao died in Amherst[3].

Works and Contributions

Things named for Calyampudi Radhakrishna Rao include Cramér–Rao bound[87], an inequation[88] and Rao–Blackwell theorem[89].

Why It Matters

Calyampudi Radhakrishna Rao ranks in the top 0.71% of human entities by monthly Wikipedia readership (143 views/month, #7,070 of 1,000,298).[8] He has Wikipedia articles in 19 language editions, a strong signal of global cultural recognition.[90] He is known by 34 alternative names across languages and contexts.[91]

He is credited with the discovery of Cramér–Rao bound[92], an inequation[93] and Score test[94], a statistical test[95]. Entities named for him include Cramér–Rao bound[87], an inequation[88] and Rao–Blackwell theorem[89].

His notable doctoral advisees include Sathamangalam Ranga Iyengar Srinivasa Varadhan[96], a mathematician[97], b. 1940[98], of India[99], awarded the Guggenheim Fellowship[100], specialised in probability theory[101]; Kalyanapuram Rangachari Parthasarathy[102], a mathematician[103], 1936–2023[104], of India[105], awarded the Shanti Swarup Bhatnagar Prize for Science and Technology[106], specialised in probability theory[107]; Veeravalli S. Varadarajan[108], a mathematician[109], 1937–2019[110], of United States[111], awarded the Fellow of the American Mathematical Society[112], specialised in mathematics[113]; and Debabrata Basu[114], a mathematician[115], 1924–2001[116], of India[117], awarded the Fulbright Scholarship[118].

FAQs

Where was Calyampudi Radhakrishna Rao born?

Calyampudi Radhakrishna Rao's place of birth was Hoovina Hadagali[2].

Where did Calyampudi Radhakrishna Rao die?

Calyampudi Radhakrishna Rao passed away in Amherst[3].

What did Calyampudi Radhakrishna Rao do for work?

Calyampudi Radhakrishna Rao worked as mathematician[4], statistician[5], university teacher[6], and economist[7].

Where did Calyampudi Radhakrishna Rao go to school?

Calyampudi Radhakrishna Rao was educated at University of Calcutta[28], Andhra University[33], Indian Statistical Institute[37], and King's College[42].

What awards did Calyampudi Radhakrishna Rao receive?

Honors received include Fellow of the Royal Society[81], Wilks Memorial Award[82], Shanti Swarup Bhatnagar Prize for Science and Technology[83], and National Medal of Science[84].

What did Calyampudi Radhakrishna Rao discover?

Calyampudi Radhakrishna Rao is credited as discoverer of Cramér–Rao bound[92] and Score test[94].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [9] ↑ . wikidata.org.
  4. [10] ↑ . wikidata.org.
  5. [11] ↑ . wikidata.org.
  6. [12] ↑ . wikidata.org.
  7. [17] ↑ . wikidata.org.
  8. [18] ↑ . wikidata.org.
  9. [19] ↑ . wikidata.org.
  10. [20] ↑ . wikidata.org.
  11. [21] ↑ . wikidata.org.
  12. [28] ↑ . wikidata.org.
  13. [33] ↑ . wikidata.org.
  14. [37] ↑ . wikidata.org.
  15. [42] ↑ . wikidata.org.
  16. [47] ↑ . wikidata.org.
  17. [52] ↑ . wikidata.org.
  18. [13] ↑ . wikidata.org.
  19. [14] ↑ . wikidata.org.
  20. [15] ↑ . wikidata.org.
  21. [16] ↑ . wikidata.org.
  22. [4] ↑ . wikidata.org.
  23. [5] ↑ . wikidata.org.
  24. [6] ↑ . wikidata.org.
  25. [7] ↑ . wikidata.org.
  26. [22] ↑ . wikidata.org.
  27. [23] ↑ . wikidata.org.
  28. [24] ↑ . wikidata.org.
  29. [25] ↑ . wikidata.org.
  30. [26] ↑ . wikidata.org.
  31. [27] ↑ . wikidata.org.
  32. [81] ↑ . wikidata.org.
  33. [82] ↑ . wikidata.org.
  34. [83] ↑ . wikidata.org.
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  36. [85] ↑ . wikidata.org.
  37. [86] ↑ . wikidata.org.
  38. [56] ↑ . wikidata.org.
  39. [75] ↑ . wikidata.org.
  40. [76] ↑ . wikidata.org.
  41. [77] ↑ . wikidata.org.
  42. [78] ↑ . wikidata.org.
  43. [79] ↑ . wikidata.org.
  44. [80] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [92] ↑ . wikidata.org. → on this site
  2. [94] ↑ . wikidata.org. → on this site
  3. [96] ↑ . wikidata.org. → on this site
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  7. [87] ↑ . wikidata.org. → on this site
  8. [89] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [73] ↑ . Wikidata. wikidata.org. → on this site
  2. [74] ↑ . Wikidata. wikidata.org. → on this site
  3. [29] ↑ . Wikidata. wikidata.org. → on this site
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  8. [35] ↑ . Wikidata. wikidata.org. → on this site
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  12. [40] ↑ . Wikidata. wikidata.org. → on this site
  13. [41] ↑ . Wikidata. wikidata.org. → on this site
  14. [43] ↑ . Wikidata. wikidata.org. → on this site
  15. [44] ↑ . Wikidata. wikidata.org. → on this site
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  33. [65] ↑ . Wikidata. wikidata.org. → on this site
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  38. [70] ↑ . Wikidata. wikidata.org. → on this site
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  40. [72] ↑ . Wikidata. wikidata.org. → on this site
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Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [8] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [90] ↑ . Wikidata sitelinks. wikidata.org.
  3. [91] ↑ . Wikidata aliases. wikidata.org.

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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Calyampudi Radhakrishna Rao. Retrieved October 6, 2026, from https://4ort.xyz/entity/calyampudi-radhakrishna-rao
MLA “Calyampudi Radhakrishna Rao.” 4ort.xyz Knowledge Graph, 4ort.xyz, 6 Oct. 2026, https://4ort.xyz/entity/calyampudi-radhakrishna-rao.
BibTeX @misc{4ortxyz_calyampudi-radhakrishna-rao_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Calyampudi Radhakrishna Rao}}, year = {2026}, url = {https://4ort.xyz/entity/calyampudi-radhakrishna-rao}, note = {Accessed: 2026-10-06}}
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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4w ago · Anti-Strange-Ipek-Action · 2026-09-06 view diff on Wikidata ↗
    National library of latvia id → 000045027, 000130434
    "/* wbcreateclaim-create:1| */ [[Property:P1368]]: 000130434, [[:toollabs:quickstatements/#/batch/270930|batch #270930]]"
  2. 16w ago · Jindřich Rubeš · 2026-06-11 view diff on Wikidata ↗
    Svkkl authority id → p0034604-Rao-C-Radhakrishna-19202023
    "/* wbcreateclaim-create:1| */ [[Property:P9322]]: p0034604-Rao-C-Radhakrishna-19202023, [[:toollabs:quickstatements/#/batch/259497|batch #259497]]"
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