Question 2

The following table shows the number of people, in thousands, in the United States with and without health insurance in 2011, according to the U.S. Census Bureau:

Age Group	Insured	Uninsured
Under 18 years	66,835	6,902
18 to 24 years	22,491	7,649
25 to 34 years	29,690	11,529
35 to 44 years	31,588	8,399
45 to 64 years	68,544	13,382
65 years and older	40,817	690

1. What percentage of the U.S. population in 2011 had health insurance and was between the ages of 18 to 24 years?
2. What percentage of the U.S. population in 2011 had health insurance and was between the ages of 35 to 44 years?
3. What percentage of the U.S. population in 2011 had health insurance, given they were 65 years or older?
4. Do age group and health insurance appear to be independent or dependent events? What conclusions can be drawn with this information?