3. In the last two decades of the twentieth century, by what fraction did unlisted phone numbers grow?
(a) By 1/2.
(b) By 1/3.
(c) By 2/3.
(d) By 1/4.

4. By how much did Greenpeace's membership drop when they stopped using direct-mail solicitation?
(a) 80 percent.
(b) 70 percent.
(c) 75 percent.
(d) 85 percent.

5. By what percent did religious adherence grow steadily from 1776 to 1980?
(a) 71.
(b) 48.
(c) 59.
(d) 62.

6. Of people who expected to move in five years, what percent were less likely to attend church, club meetings, volunteer or work on community projects?
(a) 40-45.
(b) 20-25.
(c) 30-35.
(d) 10-15.

7. How many of AARP's members belonged to local chapters?
(a) Less than 5 percent.
(b) Less than 10 percent.
(c) Less than 15 percent.
(d) Less than 20 percent.

8. On average, how many times did Americans who regularly attended both church and clubs volunteer?
(a) 23.
(b) 9.
(c) 17.
(d) 31.

9. During the 1950s and 1960s, what percent of workers belonged to professional associations and other economic organizations (other than unions)?
(a) 11-15 percent.
(b) 5-7 percent.
(c) 3-4 percent.
(d) 8-10 percent.

10. Between 1970 and 1998, by how much did the number of full-service restaurants per one hundred thousand population fall?
(a) 1/4.
(b) 1/5.
(c) 1/6.
(d) 1/8.

11. How many members did the bridge club in Chapter 1 have in 1990?
(a) 52.
(b) 18.
(c) 40-odd.
(d) 25 or so.

12. In surveys, how many Americans said that they believed in immortality?
(a) 2 out of 3.
(b) 5 out of 6.
(c) 3 out of 4.
(d) 4 out of 5.

13. In the late twentieth century, how many more times would an American send a greeting card to a friend than a letter to the editor?
(a) 35.
(b) 57.
(c) 28.
(d) 43.

14. When comparing voting records, how many years had it been since voter turnout was as bad as it was in 1996?
(a) 65.
(b) 15.
(c) 164.
(d) 98.

15. In the 1990s, how many Americans moved?
(a) 16 percent.
(b) 32 percent.
(c) 8 percent.
(d) 24 percent.