\fProblem # 3 ( 30 pts). (Show your work.) The weights of a large shipment of cast iron bollards (used for securing ropes on docks, etc) are random variables with mean u = 50.75 pounds and the standard deviation o = 0.64 pounds. What is the probability that a bollard selected from this shipment will weigh (a) Less than 49.00 pounds; (Sketch the curve) (b) more than 50.60 pounds; (Sketch the curve)