If it is assumed that all (52 5) poker hands are equally likely, what is the probability of being dealt 1. a flush? (a hand is said to be a flush if all 5 cards are of the same suit.) 2. one pair? (this occurs when the cards have denominations a, a, b, c, d, where a, b, c, and d are all distinct.) 3. two pairs? (this occurs when the cards have denominations a, a, b, b, c, where a, b, and c are all distinct.) 4. three of a kind? (this occurs when the cards have denominations a, a, a, b, c, where a, b, and c are all distinct.) 5. four of a kind? (this occurs when the cards have denominations a, a, a, a, b.)