The Customer Service Center in a large New York department store has determined that the amount of time spent with a customer abou mean of 9.9 minutes and a standard deviation of 2.0 minutes. What is the probability that for a randomly chosen customer with a compla complaint will be as follows. (Round your answers to four decimal places.) LO USE SALT (a) less than 10 minutes 0.5199 (b) longer than 5 minutes 0.0251 X (c) between 8 and 15 minutes