Problem
A bookstore manager will randomly select 1 of 5 newly arrived fiction books and 1 of 4 newly arrived nonfiction books for a window display. What is the probability that the manager will select the shortest of the newly arrived fiction books and the longest of the newly arrived nonfiction books? A. \( 5 \% \) B. \( 10 \% \)
Solution
Step 1 ：\( P(\text{shortest fiction and longest nonfiction}) = \frac{1}{5} \times \frac{1}{4} \)
Step 2 ：\( P(\text{shortest fiction and longest nonfiction}) = \frac{1}{20} \)
Step 3 ：\( P(\text{shortest fiction and longest nonfiction}) = 5 \% \)
