MathDB
BMT 2015 Spring - Individual 19

Source:

January 22, 2022
combinatorics

Problem Statement

It is known that 44 people A,B,CA, B, C, and DD each have a 1/31/3 probability of telling the truth. Suppose that ∙\bullet AA makes a statement. ∙\bullet BB makes a statement about the truthfulness of AA’s statement. ∙\bullet CC makes a statement about the truthfulness of BB’s statement. ∙\bullet DD says that CC says that BB says that AA was telling the truth. What is the probability that AA was actually telling the truth?
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