What is an expression of possible loss, adverse outcome, or negative consequence in terms of probability and severity
It's a risk.
6 - 8 = -2 is one possible answer.
Probability is a numerical value defined for a set of outcomes. It is non-negative and such that the sum or integral over all possible outcomes is 1.
Some of the negative consequences of the Roman Policy of bread and circuses is that it kept a large gap between the rich and the poor. The other negative consequences is that it stifled ambition because people did not need to work for their bread.
A probability distribution must have a well defined domain - that is, the set of possible outcomes.For each possible outcome, there must be a non-negative value associated - the probability of that outcome.The sum of the probabilities, over all possible outcomes, must be 1.
It is always non-negative. The sum (or integral) over all possible outcomes is 1.
-2, as negative value is not possible.