Final answer:
The necessary data to determine how many residents prefer chocolate frozen yogurt is not provided in the question, and thus the answer cannot be ascertained without further information.
Step-by-step explanation:
The question pertains to determining the total number of residents in the town of Wonderland who preferred chocolate frozen yogurt. Unfortunately, the data necessary to solve this problem was not provided in the question. To find the total number of residents who prefer chocolate, one would typically look at a frequency distribution table or a similar summary of the survey results that breaks down the number of people by their preference for chocolate frozen yogurt. Since this information is missing, we cannot ascertain the exact number of residents with a preference for chocolate frozen yogurt.