The probability that a randomly chosen American adult gets less than an average of 7 hours of sleep a night is 0.352. The probability that a randomly chosen American adult gets less than an average of 7 hours of sleep a night AND has at least one child under the age of three is 0.195. What is the probability that an American adult has at least one child under the age of three given that they get less than an average of 7 hours of sleep? 0.069 0.157 0.647 0.554