E-readers II Given the e-reader data presented in Exercise 52, if a randomly selected American has read 3 or more books, what’s the probability that he or she owns an e-reader?
52. E-readers In 2011, 12% of Americans owned an electronic reader of some sort. Suppose that 43% of people with e-readers read at least 3 books last year, while people without an e-reader, only 11% read 3 or more books in the course of the year.
a) Explain how these statistics indicate that owning an e-reader and reading 3 or more books are not independent.
b) What’s the probability that a randomly selected American has read 3 or more books?
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