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A simple Bayesian network. Rain influences whether the sprinkler is activated, and both rain and the sprinkler influence whether the grass is wet.

— Judea Pearl

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More quotes by Judea Pearl

You cannot answer a question that you cannot ask, and you cannot ask a question that you have no words for.

The Book of Why (2018)

Data do not understand causes and effects; humans do.

The Book of Why (2018)

A quantity Q(M) is identifiable, given a set of assumptions A, iffor any two models M1 and M2 that satisfy A, we have

Simpson's paradox (Simpson 1951; Blyth 1972), first encountered by Pearson in 1899 (Aldrich 1995), refers to the phenomenon whereby an event C increases the probability of E in a given population p and, at the same time, decreases the probability of E in every subpopulation of p.

Mr. Holmes receives a telephone call from his neighbor Dr. Watson who states that he hears the sound of a burglar alarm from the direction of Mr. Holmes' house. While preparing to rush home, Mr. Holmes recalls that Dr. Watson is known to be a tasteless practical joker...

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Quote text and notes from Wikiquote: Judea Pearl (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.