(From MS 4.92) Mercury in seafood. An issue of Consumer Reports found widespread contamination and mislabeling of seafood in supermarkets in New York City and Chicago. The study revealed one alarming statistic: 40% of the swordfish pieces available for sale had a level of mercury above the Food and Drug Administration (FDA) maximum amount. For a random sample of three swordfish pieces, find the probability that at most one swordfish piece has a mercury level above the FDA maximum. Give your answer to 4 decimal places! Hint: "at most" means