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Published online by Cambridge University Press: 03 November 2016
The game of Banker’s Clock provides an interesting question in mathematical probability In this game the banker turns up in sequence the first twelve cards of a well-shuffled ordinary pack of 52 cards. He backs himself to turn up at least one card of which the face value corresponds to its position in the sequence, an Ace ranking as one, a Jack as eleven and a Queen as twelve. The interest in the question from the mathematical point of view is in finding the probability that the event will happen.
An alternative proof, developed from the knowledge of the form of the result, is given in Caliban’s Problem Book, recently published.
* An alternative proof, developed from the knowledge of the form of the result, is given in Caliban’s Problem Book, recently published.