Sports and Leisure Consider a regular deck of 52 playing cards. For a five-card poker hand, find the probability of:
a. One pair.
b. Two pairs.
c. Three of a kind: three cards of the same rank and two others of different ranks, for example, JJJ74.
d. A straight: five cards in sequence; the ace can be either high or low.
e. A flush: five cards of the same suit.