The weight of people in a small town in missouri is known to be normally distributed with a mean of 178 pounds and a standard deviation of 28 pounds. on a raft that takes people across the river, a sign states, “maximum capacity 3,600 pounds of 18 persons.” what is the probability that a random sample of 18 persons will exceed the weight limit of 3,600 pounds?

Why is the type of product sold in an industry an important characteristic? a firm that can differentiate its product from that of rivals may be able to charge a higher price for a superior product. a firm that sells intangible goods is usually considered a monopoly. service industries cannot differentiate their products, which makes it easy for new firms to enter the industry. expensive products are usually sold by perfectly competitive firms.