Question

A patron enters a bookstore and randomly selects a book to read. The store specializes in fantasy (event F) and 48% of their books of from this genre. Additionally, 30% of the books are hardback editions (event H) and some are by local authors (event L). 1% of the books are hardcover editions, not fantasy, by local authors. 11% are paperback non-fantasy and 8% are paperback books by local authors.

1. What is the probability that a book is not a fantasy?
2. What is the probability that a book is a hardback fantasy book?
3. What is the probability that the book is a paperback by a non-local author?
4. What is the probability that the randomly selected book is a hardcover edition non-fantasy by an author that is not local?

Answer 1

Event (F)=Fantasy book =48%=48 books

Event(H)=hardback Fantacy book and some are from  local author=30%=30 books

hardcover edition,non-fantasy by local author=1%=1 book

paperback books ,non-fantasy from local author=11%=11 book

paperback books from local author=8%=8 books

Consider their are total 100 books.

1. 20/100=0.20
2. 30/100=0.30
3. None
4. 0.22