e/Craps principle

Information
has gloss	eng: In probability theory, the craps principle is a theorem about event probabilities under repeated iid trials. Let E_1 and E_2 denote two mutually exclusive events which might occur on a given trial. Then for each trial, the conditional probability that E_1 occurs given that E_1 or E_2 occur is
lexicalization	eng: craps principle
instance of	c/Statistical principles