An elevator has a placard stating that the maximum capacity is 4500 lb-29 passengers. So, 29 adult male passengers can have a mean weight of up to 4500 / 29= 155 pounds. Assume that weights of males are normally distributed with a mean of 189 lb and a standard deviation of 40 lb. a. Find the probability that 1 randomly selected adult male has a weight greater than 155 lb. b. Find the probability that a sample of 29 randomly selected adult males has a mean weight greater than 155 lb. c. What do you conclude about the safety of this elevator? a. The probability that 1 randomly selected adult male has a weight greater than 155 lb is (Round to four decimal places as needed.)