Information on previous textbooks published indicates that 10% are huge successes, 20% are
modest successes, 40% break even, and 30% lost money. However, before a publishing decision is
made, the book will be reviewed. In the past, 99% of the huge successes received favorable reviews,
70% of the moderate successes received favorable reviews, 40% of the break-even books received
favorable reviews, and 20% of the losers received favorable reviews.
a. What proportion of textbooks receives favorable reviews?
b. If a proposed textbook receives a favorable review, what is the probability for the book to be a
huge success?
a