R. Dennis Cook

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Ralph Dennis Cook
Born(1944-06-20)June 20, 1944
Alma materMontana State University
Kansas State University
Known forCook's distance
Cook-Weisberg test

Ralph Dennis Cook (born June 20, 1944) is an American statistician, mostly known for Cook's distance[1] and the Cook–Weisberg test.[2] Cook is a Professor of Statistics at the University of Minnesota.

After graduating from Northern Montana College, Cook earned his master's and Ph.D. from Kansas State University.[3]

In 1982 he was elected as a Fellow of the American Statistical Association.[4]


  1. ^ Cook, R. Dennis (February 1977). "Detection of Influential Observations in Linear Regression". Technometrics. American Statistical Association. 19 (1): 15–18. doi:10.2307/1268249. JSTOR 1268249. MR 0436478.
  2. ^ Cook, R. D.; Weisberg, S. (1983). "Diagnostics for Heteroscedasticity in Regression". Biometrika. 70 (1): 1–10. doi:10.1093/biomet/70.1.1.
  3. ^ Curriculum Vitae: R. Dennis Cook
  4. ^ View/Search Fellows of the ASA, accessed 2016-10-15.

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