Hi,
In a previous message, I mentioned a result on imprecise
probability and some references on ignorance/imprecision
(I apologize I mixed two threads in a message!). Some people
have requested the exact reference to the paper:
Inferences from Multinomial Data: Learning about a Bag of Marbles
Peter Walley
J. Royal Statistical Society B, 58, No. 1, pp. 3-57, 1996.
The question addressed by the paper is similar to one that is
under discussion now: Suppose I show you a bag of marbles, tell
you nothing about it, and ask you the probability that I draw a
red marble.
I hope this helps,
Fabio Cozman
