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Mathematics 19 Online
OpenStudy (anonymous):

Selecting a book. At a used book sale, 100 books are adult books and 160 are childrens books. Of the adult books, 70 are nonfiction while 60 of the childrents books are nonfiction. If a book is selected at random, the probability that it is a. fiction. b. not a childrens nonfiction book. c. an adult book or a childrens nonfiction book

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