David A. Freedman

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David A. Freedman
Freedman in 1984
Born	(1938-03-05)5 March 1938 Montreal, Quebec, Canada
Died	17 October 2008(2008-10-17) (aged 70) Berkeley, California, US
Alma mater	Princeton University McGill University
Spouses	Janet Macher Shanna Swan ​ (divorced)​
Children	Joshua Freedman Deborah Freedman Lustig
Scientific career
Fields	Statistics
Institutions	University of California, Berkeley Institute of Mathematical Statistics
Doctoral advisor	William Feller

David Amiel Freedman (5 March 1938 – 17 October 2008) was a Professor of Statistics at the University of California, Berkeley. He was a distinguished mathematical statistician whose wide-ranging research included the analysis of martingale inequalities, Markov processes, de Finetti's theorem, consistency of Bayes estimators, sampling, the bootstrap, and procedures for testing and evaluating models. He published extensively on methods for causal inference and the behavior of standard statistical models under non-standard conditions – for example, how regression models behave when fitted to data from randomized experiments. Freedman also wrote widely on the application—and misapplication—of statistics in the social sciences, including epidemiology, public policy, and law.