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Exercise 15

Avg difficulty 2.5

Among the 95 books on a bookshelf, 72 are fiction, 28 are hardcover, and 87 are fiction or hardcover.

  1. Create a contingency table for the information.

    HardcoverPaperbackTotal
    Fiction
    Nonfiction
    Total

  2. What is the probability that a book is non-fiction and paperback?

  3. What is the probability that a book is fiction given it is hardcover?

Lee et al., Math in Society, §4.1 Contingency Tables, Exercise 15

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Adapted from Math in Society © 2018–2024 Portland Community College Math Instructors. Licensed under CC BY-SA 4.0. Source: Math in Society. Imported at revision 68ee43c.