Assume a baa contains 15 balls in different colors: 5 in vellow. 5 in red and 5 in
blue. Each time you get one ball out and make one observation about its color.
1. Take one ball out and observe its color as NOT red. O2. Take out the second ball, and observe its color as ANY
What is the belief and plausibility for the next ball to be in either blue or yellow?