I have a list of possibilities [1,2,3,4,5]
I want to choose one at random but make it so that I can specify the probability of each one e.g.
states = [1,2,3,4,5]
probs = [0.1,0.1,0.1,0.1,0.6]
so that 1 is chosen with a probability of 10%, 2 with a probability of 10%, etc.
