BAYKS' THEOREM 283 



of Bayes' theorem, is of negligible importance when the numbers N 

 and T are large. Therefore, when this condition holds, one need not 

 hesitate to use Ba>es' restricted formula for the solution of a problem 

 of causes. 



The transmission, by Price, of Bayes' posthumous essay to the 

 Royal Society marked an epoch in the history of the literature on 

 probability theory. As mentioned at the beginning of this paper, 

 Karl Pearson has called the extension of Bayes' problem the "Funda- 

 mental Problem of Practical Statistics." 



