19. Prime Number Numbers A prime number is a number that is evenly divisible only by 1 and itself. The prime numbers less than 100 are listed below. 2 3 5 7 11 13 17 19 23 29 37 41 43 47 53 59 61 67 71 73 83 89 97 Choose one of these numbers at random. Find the probability that a. The number is even . The sum of the number's digits is even C. The number is greater than 50 rare permitted? If repetitions are not permitted? Selection of Officers Six students are running for the positions of president and vice-president, and five students are running for secretary and treasurer. If the two highest vote getters in each of the two contests are elected, how many winning combinations can there be? 12. Automobile Trips There are 2 major roads from city X to city Y and 4 major roads from city Y to city Z. I How many different trips can be made from city X to city Z passing through city Y? 13. Evaluate each of these. a. 8! ase. Pg i gps b. 10! f. 12P4 j. P2 c. O! sborg . sP3 Bb d. 1! h. Po