3.2 (1 point) An editor may use all, some or none of three possible marketing strategies to enhance the sales of a book: (a) An expensive prepublication promotion (b) An expensive cover design (c) A foreword by another famous author (or non-literary celebrity). In the past, an editor has deployed all three promotional strategies for only 2% of her company's books. Twenty percent of the books published by her company have had expensive cover designs. 80% of books that had an expensive cover design had an expensive pre-publication promotion. A rival editor learns from his sources that a new book has both an expensive cover design and an expensive pre-publication promotion. Now he wants to predict how likely it is that a well-known author (or other celebrity) is going to write the foreword for this book. Clearly, that means that this book is going to be a big hit. Compute the probability of interest for this rival editor.
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