Johann Pfanzagl completed his degree in Mathematics at the University of Vienna in 1951 as a student of Johann Radon and Edmund Hlawka. After working for several years as a Statistician at the Chamber of Commerce in Austria he became a Professor of Statistics at the University of Vienna in 1959, and at the University of Cologne in 1960. He is one of the few remaining scholars who, in the early days, contributed to the development of statistical theory using sophisticated mathematical tools.

• Introduction.- Sufficiency.- Descriptive Statistics.- Optimality of unbiased estimators: nonasymptotic theory.- Asymptotic optimality of estimators.- Bibliography.- Index.

Johann Pfanzagl completed his degree in Mathematics at the University of Vienna in 1951 as a student of Johann Radon and Edmund Hlawka. After working for several years as a Statistician at the Chamber of Commerce in Austria he became a Professor of Statistics at the University of Vienna in 1959, and at the University of Cologne in 1960. He is one of the few remaining scholars who, in the early days, contributed to the development of statistical theory using sophisticated mathematical tools.

• Introduction.- Sufficiency.- Descriptive Statistics.- Optimality of unbiased estimators: nonasymptotic theory.- Asymptotic optimality of estimators.- Bibliography.- Index.

Johann Pfanzagl completed his degree in Mathematics at the University of Vienna in 1951 as a student of Johann Radon and Edmund Hlawka. After working for several years as a Statistician at the Chamber of Commerce in Austria he became a Professor of Statistics at the University of Vienna in 1959, and at the University of Cologne in 1960. He is one of the few remaining scholars who, in the early days, contributed to the development of statistical theory using sophisticated mathematical tools.

• Introduction.- Sufficiency.- Descriptive Statistics.- Optimality of unbiased estimators: nonasymptotic theory.- Asymptotic optimality of estimators.- Bibliography.- Index.