Albert Jacquard (1925-2013)

Albert Jacquard passed away last week. He was a humanist, engaged in the defence of outcasts (laissés pour compte) like homeless and illegal immigrants. He had a regular chronicle of two minutes on France Culture that I used to listen to (when driving at that time of the day). In the obituaries published in the recent days, this side of the character was put forward, while very little was said about his scientific legacy. He was a statistician, first at INSEE, then at INED. After getting a PhD in genetics from Stanford in 1968, he got back to INED as a population geneticist, writing in 1978 his most famous book, Éloge de la Différence, against racial theories, which is the first in a long series of vulgarisation and philosophical books. Among his scientific books, he wrote the entry on Probabilités in the popular vulgarisation series “Que Sais-Je?”, with more than 40,000 copies sold and used by generations of students. (Among its 125 pages, the imposed length for a  “Que Sais-Je?”, the book includes Bayes theorem and, more importantly, the Bayesian approach to estimating unknown probabilities!)

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