Do you have a library card? According to a September 2008 Harris poll, 68% of all American adults have a public library card. The percentages do differ by gender−62% of males have library cards compared to 73% of females.
a. the three probabilities: P(A) =.68, P(A | B) =.62, and P(A | C) =.73. Define events A, B, and C.
b. Assuming that half of all American adults are males and half are females, what is the probability that an American adult is a female who owns a library card?
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