According to the National Center for Health Statistics there is
According to the National Center for Health Statistics, there is a 20.3% probability that a randomly selected resident of the United States aged 18 years or older is a smoker. In addition, there is a 44.5% probability that a randomly selected resident of the United States aged 18 years or older is female, given that he or she smokes. What is the probability that a randomly selected resident of the United States aged 18 years or older is female and smokes? Would it be unusual to randomly select a resident of the United States aged 18 years or older who is female and smokes?
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