Consider a 1 step binomial model of security with S(0) = 120 and r = .05 and P(S(1) = 120) = 1/3 and P(S(1) = 132) = 2/3. Can you find the Risk neutral measure? what is the transformation function τ (Radon-Nikodym Derivative/Girsonov transformation) of the original probability to the risk neutral measure?