Lauren attended her 10th high school reunion. Of the71 people present, she observed that 30were married and in their first marriage,23were married and in their second marriage, and 18 were currently single. (to three decimal places.)(a) If one person is selected at random from the group, find the probability that it is a single person.(b) If two people are selected at random, find the probability that both are in their second marriage.(c) If three people are selected at random, find the probability that two are in their first marriage and one is single.