In the
"Notalwayslying politician" problem, what's the probability that a particular sentence is true?
Let p be the probability of a true statement. The probability that the next statement is true is (p/2)+(1p). That has to equal p.
(p/2)+(1p)=p
1(p/2)=p
1=3p/2
p=2/3
Therefore, the probability of a true statement is 2/3.

Posted by Math Man
on 20120516 09:25:43 