In Orange County, 51% of the adults are males. (It doesn't take too much advanced mathematics to
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Question:
In Orange County, 51% of the adults are males. (It doesn't take too much advanced mathematics to deduce that the other 49% are females.) One adult is randomly selected for a survey involving credit card usage.
a) Find the prior probability that the selected person is a male.
b) It is later learned that the selected survey subject was smoking a cigar. Also, 9.5% of males smoke cigars, whereas 1.7% of females smoke cigars (based on data from the Substance Abuse and Mental Health Services Administration).
Use this additional information to find the probability that the selected subject is a male.
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