# Mathematician:Irving John Good

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## Mathematician

British mathematician of Polish ancestry who worked as a cryptologist at Bletchley Park with Alan Turing.

Subsequently focused on the design of computers and Bayesian statistics.

## Nationality

English, of Polish origin

## History

- Born: 9 December 1916 in London, UK
- Died: 5 April 2009 in Radford, Virginia, US

## Theorems and Definitions

## Publications

- 1953:
*The population frequencies of species and the estimation of population parameters*(*Biometrika***Vol. 40**: pp. 237 – 264) www.jstor.org/stable/2333344

- 1961:
*The Multivariate Saddlepoint Method and Chi-Squared for the Multinomial Distribution*(*Ann. Math. Stat.***Vol. 32**: pp. 535 – 548)

- 1966:
*A Note on Richard's Paradox*(*Mind***Vol. 75**,*no. 299*: p. 431)

## Also known as

Born **Isadore Jacob Gudak** to Polish Jewish parents.

Changed his name to **Irving John Good** and signed his publications **I.J. Good**.

Generally known as **I.J.** or **Jack**.