Consider randomly selecting a single individual and having that person test drive 3 different vehicles. define events a1, a2, and a3 by a1 = likes vehicle #1 a2 = likes vehicle #2 a3 = likes vehicle #3. suppose that p(a1) = 0.55, p(a2) = 0.65, p(a3) = 0.70, p(a1 ∪ a2) = 0.80, p(a2 ∩ a3) = 0.50, and p(a1 ∪ a2 ∪ a3) = 0.84. (a) what is the probability that the individual likes both vehicle #1 and vehicle #2? (b) determine p(a2 | a3). (round your answer to four decimal places.) p(a2 | a3) =