According to a study of 200 samples of ground meats, the probability that one of the samples was contaminated by salmonella was .35. the probability that a salmonella-contaminated sample was contaminated by a strain resistant to at least one antibiotic was .64, and the probability that a salmonella-contaminated sample was contaminated by a strain resistant to at least three antibiotics was .54. find the probability that a ground meat sample that was contaminated by an antibiotic-resistant strain was contaminated by a strain resistant to at least three antibiotics.
(round your answer to three decimal places.)