At an antique boat show, 90% of the boats are made of a natural, polished wood. 75% of the boats have some chrome accents on the boat on at least one visible feature. And 60% have both features. 4. What is the probability that if a boat has chrome accents it is also made of natural wood? 5. What is the probability that a boat is either made of wood or has chrome accents? 6. Does it appear that having chrome accents and being made of wood are independent characteristics? Provide statistical evidence to justify your response.