According to a study of 200 samples of ground meats the probability that one of the samples was contaminated by salmonella was 30 The probability that a salmonella contaminated sample was contaminated by a strain resistant to at least one antibiotic was 67 and the probability that a salmonella contaminated sample was contamin 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 0 827