Today in Uncertainty Wednesday we are continuing with some of the math of probability. As a reminder from last Wednesday, we have two states, A and B and two signal values H and L for four possible elementary events AH, AL, BH, and BL. We defined events as some combination of elementary events. So for instance we could have E = {AH, BL}. We write P(E) for the probably of event E and we saw that P(Ø) = 0 and P({AH, AL, BH, BL}) = 1. Since events are sets, we can also reason about the probabili...