4. There are six defective fuses in a bin of 80 fuses. Two fuses are randomly selected without replacement and tested, a. Find the probability that at least one of the fuses is defective. b. Find the probability that one of the fueses is defective and the other is non-defective 5. The port of South Louisiana is the largest-tonnage port in the United States. Inspectors randomly select ships at one of the facilities and check for safety violations. Past records indicate that 90% of all ships inspected have no safety violations. If three ships are selected at random, a. What is the probability that all three ships have safety violations? P = 0.10 n = 3 b. What is the probability that exactly one ship has a safety violation? c. What is the probability that at least two of the three ships has safety violations? (3) 4 (4) (4) (4)