Over the past few decades, what has happened to the distribution of yearly income in the United States?
a. Most American households got a smaller percentage of the total income.
b. The wealthiest one-fifth of the population received a smaller percentage of total income.
c. Members of the middle class increased their percentage of total income earned.
d. The income gap between the richest and poorest members of society narrowed considerably.
Question 2
About what percentage of annual income is received by the richest 5 percent of American families?
a. 10 percent
b. 20 percent
c. 30 percent
d. 40 percent
Critical Values of the Chi-Square Distribution
German and Irish Settlement in the Northeastern United States, 1870
Distribution of the Income of Americans
Regional Variation in Income and Access to the Sea
Income per Capita versus Income of the Bottom Quintile
STDs in the United Stated