I want to know the answer to the following question:
What percent of undergraduate students live on campus at Washington University?
All the background I'm provided with is that "Bear's Den (the largest dining hall on campus), the Habif Health and Wellness Center (Student Health Services), the Residential Life Office, University Police Headquarters, various student-owned businesses (e.g. the laundry service, Wash U Wash), and the baseball, softball, and intramural fields are also located on the South 40.". Is that enough to answer the question?