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Bradley Efron is a prominent American statistician best known for his contributions to statistics, particularly in the areas of resampling methods and the development of the bootstrap technique. Born on April 24, 1938, Efron has had a significant impact on the field, influencing how statisticians analyze data.

C. F. Jeff Wu is a prominent statistician known for his contributions to the fields of statistics and biostatistics. He is particularly recognized for his work in Bayesian statistics, statistical genetics, and the development of statistical methods for various applications, including quality improvement and experimental design. Wu has held significant academic positions, including serving as a professor in the Department of Statistics at the University of Michigan. He has also been recognized for his efforts in education and research within the statistical community.

The effective radius of a galaxy, often denoted as \( R_e \) or \( r_{\text{eff}} \), is a key parameter in astronomy that describes the size of a galaxy in terms of its brightness distribution. Specifically, it is defined as the radius within which half of the total light (or luminosity) of the galaxy is contained.

Claudia Czado is a notable statistician and researcher known for her work in the fields of statistical modeling and data analysis, particularly in the areas of time series analysis, statistical learning, and copula models. She has been affiliated with academic institutions, often contributing to research in applied statistics, econometrics, and related fields. Czado has published a variety of papers and often collaborates on projects that involve complex statistical methods to analyze real-world data.

Halbert White is a prominent statistician and econometrician known for his contributions to the fields of econometrics and statistical theory. One of his significant contributions is the development of robust standard errors, which address issues of heteroskedasticity (non-constant variance) in the context of regression analysis. This work is particularly influential in ensuring valid inference in econometric models when the assumptions of traditional ordinary least squares regression are violated.

Hannu Oja is not a widely recognized name in mainstream culture or science, as of my last update in October 2023. It’s possible that he could be a professional in a specific field, a local figure, or a name that has gained prominence after my last data update.

Hans-Rudolf Künsch is a notable Swiss statistician, recognized for his contributions to the field of statistics, particularly in areas related to time series analysis, statistical inference, and the theory of stochastic processes. He is known for developing methods related to empirical processes and also for his work in nonparametric statistics.

Harold Jeffreys (1891–1989) was a prominent British mathematician, statistician, and geophysicist known for his contributions to various fields, including Bayesian statistics, geophysics, and the study of earthquakes. He played a significant role in the development of Bayesian methods in statistics, advocating for the use of subjective probabilities based on prior knowledge and evidence in statistical analysis.

Peter Diggle is a prominent statistician known for his work in the field of spatial statistics and epidemiology. He has made substantial contributions to the development and application of statistical methods for analyzing data that are spatially structured or associated with geographical locations. Diggle is also recognized for his work on survival analysis and the modeling of disease outbreaks. In academia, he has authored several influential papers and books, contributing to the theoretical foundations and practical applications of statistical methods in various fields, particularly public health.

Peter J. Bickel is a prominent statistician known for his contributions to various areas in the field of statistics, particularly in the areas of asymptotic theory, robust statistics, and survival analysis. He has had a significant impact on statistical methodology and applications and has authored and co-authored numerous papers and books on these topics. Bickel has held academic positions, including at the University of California, Berkeley, where he has been involved in both teaching and research.

Pranab K. Sen is a prominent statistician, well-known for his contributions to the fields of nonparametric statistics and biostatistics. He has been involved in various research areas, including statistical methodology and applications in medical research. Sen has published extensively in academic journals, authored books, and served in editorial roles for statistical publications. His work has had a significant impact on the development of statistical methods used in various scientific fields.

Prasanta Chandra Mahalanobis (1893-1972) was an influential Indian statistician and scientist known for his significant contributions to statistics and its applications in various fields, particularly in economics and agriculture. He is best known for developing the Mahalanobis distance, a measure that is used in multivariate analysis to determine the distance between a point and a distribution.

The 15th century was a significant period for mathematics, particularly because it was part of the broader Renaissance movement, which saw a revival of interest in science and learning. Here are some key mathematicians and developments from the 15th century: 1. **Fibonacci (Leonardo of Pisa, c. 1170-1250)**: Although he lived earlier than the 15th century, Fibonacci’s work laid important foundations for later mathematicians.

Immittance is a term used in electrical engineering and electronics to refer to the combined effects of resistance and reactance in an electrical circuit. It is a complex quantity that encompasses both the resistance (real part) and the reactance (imaginary part) of a circuit element or network.

David Firth is a prominent statistician known for his contributions to a variety of fields within statistics, including statistical theory, hypothesis testing, and Bayesian methods. He is particularly noted for developing Firth's bias reduction method, which is used to address issues of bias in maximum likelihood estimation, especially in situations where the sample size is small or the data are sparse. Firth's work emphasizes the application of robust statistical techniques in different domains, including medical statistics and epidemiology.

David Hand is a prominent statistician and academic known for his contributions to the field of statistics and data science. He has published extensively on various topics, including statistical modeling, informatics, and the use of statistics in practice. Hand has also contributed to the development of techniques in predictive modeling and has explored the implications of statistical thinking in real-world scenarios. In addition to his research, David Hand has been involved in teaching and has held various academic positions, including professorships at leading universities.

David Hinkley could refer to several individuals, but without specific context, it's difficult to determine exactly which David Hinkley you are referring to. One notable David Hinkley is a well-known American author and journalist, known for his work in media and commentary. If you have a specific context or field in which you’re interested (e.g., sports, academia, literature), that would help narrow it down!

Don Ylvisaker is a notable figure in the fields of communication and media studies, particularly recognized for his contributions to understanding communication technology and its impact on society. He has been involved in academic research, teaching, and writing, often focusing on the intersection of technology, communication, and culture.

Donald Allan Darling, born in 1934, was a notable American politician and a member of the Republican Party. He served as a member of the U.S. House of Representatives, representing Michigan's 6th congressional district from 1977 to 1979. Prior to his congressional career, he was involved in various public service roles, including serving in the Michigan State Legislature. In addition to his political career, Darling was known for his work in community service and various business ventures.