The numbers 1, 2, 3, 4, and 5 are written on slips of paper, and 2 slips are drawn at random one at a time without replacement. Find the given probabilities. a. The sum of the numbers is 9. b. The sum of the number is 3 or less. c. The first number is 2 or the sum is 6. . . . a. The probability that the sum of the numbers is 9 is (Type an integer or a simplified fraction.) b. The probability that the sum of the numbers is 3 or less is (Type an integer or a simplified fraction.) c. The probability that the first number is 2 or the sum is 6 is (Type an integer or a simplified fraction.)