Chipotle can serve one customer every two minutes on average. (a) What is the probability that the wait time for the next customer served will exceed one minute? (b) What is the probability that the wait time for the next customer served you will exceed three minutes, given that they have been waiting for 1 minute already? (c) There are 4 people in line. What is the probability that it will take at most 7 minutes to serve them?