2. A recent study demonstrated that only 20% of the people in Vancouver feel that its mass transit system is adequate. (a) (3 marks) If 20 people from Vancouver are selected at random, find the probability that more than 1 feel its mass transit system is adequate? (b) (3 marks) of these 20 people, how many should we expect feel that its mass transit system is adequate? +) (4 marks) If 250 people from Vancouver are selected at random, find the probability that 65 or less feel that its mass transit system is adequate by making use of the normal approximation