1. The problem asks: What population is being studied when a bagel shop surveys every 10th person who made a purchase during a certain week in June? 2. The population in a survey is the entire group about which information is desired. 3. Here, the survey targets customers who made purchases, so the population is all customers of the bagel shop during that week. 4. The options are: a. Bagels (items, not people) b. The bagel shop's customers (people who buy bagels) c. All restaurants (too broad) d. The bagel shop's owners (not surveyed) e. None of the above 5. The correct answer is b. The bagel shop's customers. Final answer: **b. The bagel shop's customers**