Final answer:
The survey results regarding which ethnic groups exercised most or least are not explicitly provided in the provided information, but societal norms suggest Latino boys may exercise more and African American and Asian girls less.
Step-by-step explanation:
The student's question is about ethnic group exercise habits according to a national survey. There are no directly provided statistics in the given information to conclusively answer which groups exercised the most or the least. However, discussing tendencies based on some societal studies, Latino boys might generally be perceived as more physically active due to a variety of cultural and socioeconomic factors, including the popularity of sports such as soccer in Latino communities. Conversely, African American and Asian girls might be seen as exercising less due to various barriers including access to recreational facilities, cultural norms, and socioeconomic status. It's crucial to note that exercising habits can be influenced by a host of factors and the survey results could vary widely based on the specifics of the methodology used.