o Calculate the number of outcomes of a random experiment using . have three remaining possibilities for each of the preceding results-- calculate the product. These are the easiest to calculate. (In other words, there are n possibilities for the first choice, THEN there are n possibilites for the second choice, and so on, Lotteries · Pascal's Triangle · The Binomial Distribution. I feel stupid, but I don't know how to calculate how many possible .. 2 different methods of calculating possibilities of people sitting at round.