Letter | Published:

Frequency Interpretations in Probability

Nature volume 143, pages 601602 (08 April 1939) | Download Citation

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Abstract

IF he were consistent, de Moivre would not have accepted 5/12 as the probability in Dr. Jeffrey's problem. (Two boxes, one containing 1 white and 2 black balls, the other 1 white and 1 black. Choose a box; then draw a ball; what is the probability of drawing white ? NATURE, Feb. 11.) For, according to his definition, the statement that the probability is 5/12 must mean that there are 12n, different possible cases, of which 5n are favourable, n being an integer. That simply is not true.

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  1. 21 Carlton Hill, St. John's Wood, N.W.8. Feb. 12.

    • NORMAN CAMPBELL

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DOI

https://doi.org/10.1038/143601c0

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