what is the sum of empirical probability
Let S = {s1, s2, ... , sn} be a sample space and let P(si) be the empirical probability of the event {si}. Then, the empirical probabilities of all the outcomes add up to 1, i.e.,
P(s1) + P(s2) + ... + P(sn) = 1
Thus, the sum of empirical probability is 1.