It's asking about the "adult population" -- does that make a difference?
I think you're probably right, but check out a few of these search results first:
http://www.google.com/search?q=us+adult+population+with+internet+access&oq=us+adult+population+with+internet+access&aqs=chrome..69i57j69i64.8340j0j7&sourceid=chrome&es_sm=119&ie=UTF-8
Approximately _____ of the country's adult population has internet access.
a. one-third
b. two-thirds
c. one-quarter
d. three-quarters
I am guessing d. the others seem to low. The book states that the number of U.S. internet users hit 194 million in 2008 (85 percent of families), each averaging 15 hours a week online.
3 answers
Keep in mind that your study materials may be a little outdated (check the copyright date) and things change very fast. But choose the answer that is closest to what your book says.
This site has interesting numbers and graphs:
http://www.census.gov/popclock/
http://www.census.gov/popclock/
1 answer