VII. Summarizing a Single Variable with Rates, Ratios, Percentage Change, and Percentage-Point Change
Table 1: Frequency Distribution of Education for Full-Time, Full-Period
American Jobholders, 1984-85 and 1992-93
| 1983-85 | 1992-93 | |
| College, 4 or more years | 10,629 (1) | 15,374 |
| College, 1 to 3 years | 9,321 | 12,763 |
| High school, 12 years or less | 24,600 | 25,750 |
(1) Thousands of Workers
Source: U.S. Bureau of the Census, Survey of Income and Program
Participation
1. What percentage of full-time, full-period job holders
had 4 or more years of college in 1983-85?
2. What percentage of full-time, full period job holders had 4 or more years of college in 1992-93?
3. What is the ratio of college, 4 years of more, to high school, 12 years or less in 1983-85?
4. What is the ratio of college, 4 years of more, to high school, 12 years or less in 1992-93?
5. 37.6 percent of high school full-time, full-period job holders in 1992-93 had average hourly wages less than $5.70 for at least one month.
How many workers does that amount to? (What is the N?)
6. Express this percent (Question 5) as a rate per 1000.
7. Express this percent (Question 5) as a rate per 100,000.
8. What is the percentage change in the number of full-time, full-period job holders with 4 or more years of college between 1983-85 and 1992-93?
9. What is the percentage change in the number of full-time, full period job holders with a high school education between 1983-85 and 1992-93?
10. 13.5 percent of college, 4 years of more, full-time, full-period job holders in 1992-93 had average hourly wages less than $5.70 for at least one month.
What is the percentage-point difference in low-wage employment (average hourly wages less than $5.70 for at least one month) between college, 4 years of more, job holders and high school job holders (Question 5)?