Final answer:
The exact number of FFA chapters in the top 20 largest cities cannot be determined from the provided information. FFA chapters are typically found in areas with agricultural education programs, often more associated with rural rather than urban settings.
Step-by-step explanation:
The number of FFA (Future Farmers of America) chapters in the top 20 largest cities is not specified in the provided data. However, FFA chapters are more common in rural and agricultural communities, which might not be heavily represented in the largest urban areas. The presence of FFA chapters in large cities would depend on the availability of agricultural education programs in urban schools.
To answer your question accurately would require specific research into each city's school programs. People living in small towns and rural areas may still be considered part of a larger urban system like a Combined Statistical Area (CSA) or a Metropolitan Statistical Area (MSA), which are part of a more extensive urban hierarchy. Therefore, some members of FFA chapters could technically belong to a larger urban area, including small towns within the CSA or MSA regions.