In usa today (sept. 5, 1996), the results of a survey involving the use of sleepwear while traveling were listed as follows: male female total underwear 0.220 0.024 0.244 nightgown 0.002 0.180 0.182 nothing 0.160 0.018 0.178 pajamas 0.102 0.073 0.175 t-shirt 0.046 0.088 0.134 other 0.084 0.003 0.087 (a) what is the probability that a traveler is a female who sleeps in the nude? (b) what is the probability that a traveler is male? (c) assuming the traveler is male, what is the probability that he sleeps in pajamas? (d) what is the probability that a traveler is male if the traveler sleeps in pajamas or a t-shirt?