Half way through grading last semester's final, yourillustrious instructor got really depressed and decided thatBarbancourt 5-Start would help. He was working at a desk 30 ft.from the door in a 60 ft. wide room. With all that Barbancourt hehad a call of nature, and with all that Barbancourt he proceceeded toward the door in a random (i.e., random walk) fashion. His step length was one foot, and he took one step per second.
a. Approximately how long (seconds) did it take him to reach the door by a random walk?
b. How long would it have taken to reach the door by a simple directed walk?