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The following table shows the number of people, in thounds, 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
a. What percentage of the U.S. population in 2011 did not have health insurance and was between the ages of 18 to 24 years?
b. What percentage of the U.S. population in 2011 did not have health insurance or was between the ages of 25 to 34 years?
c. What percentage of the U.S. population in 2011 did have health insurance, given they were 65 years or older?
d. Do age group and health insurance appear to be independent or dependent events? Define Event A as a person 45 to 64 years old and Event B as the person insured. What conclusions can be drawn with this information?
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