Question: Given the e-reader data presented in Exercise 52. a) If a randomly selected U.S. adult has an e-reader, what is the probability that he or
a) If a randomly selected U.S. adult has an e-reader, what is the probability that he or she hasn't read an e-book in the past year?
b) Is it more or less likely that a randomly selected U.S. adult who does not own an e-reader would have read no books in the past year?
Exercise 52
Pewlnternet reported in January of 2014 that 32% of U.S. adults own at least one e-reader, and that 28% of U.S. adults read at least one e-book in the previous year (and thus, presumably, owned an e-reader). Overall, 76% of U.S. adults read at least one book (electronic or otherwise) in the previous year, (http://pewinternet.org/Reports/2014/E-Reading-Update/A-Snapshot-of-Reading-in-America-in-2013/Whos-reading-and-how-a-demographic-portrait.aspx).
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a Phasnt read at least 1 book ereader Phasnt read at least 1 book andereader Pereader 004 032 0125 Theprobability that a randomly selected US adult has read at least one bookgiven that he or she has an ereader is 125 b We know that 24 of US adults havenot read any type of book in the previous yearand 4 of US adults were ereader owners who have not read a book in the previous year This means that 24 4 20 of US adults have no ereader and haveread no books Phasnt read at least 1 book noereader Phasnt read at least 1 book and ... View full answer
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