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Proportion and Probability
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 |
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