14 couples (28 people) take part in a contest where 14 people are to be selected at random to win a $100 prize. Part (a) How many possible different combinations of winners are there? (If rounding use at least four digits after the decimal in your answer) Part (b) What is the probability that one person from each of the 14 couples wins a prize? (If rounding use at least four digits after the decimal in your answer)