Due to rising health insurance costs, 43 million people in the United States go without health insurance (Time, December 1, 2003). Sample data representative of the national health insurance coverage for individuals 18 years of age and older are shown here.
a. Develop a joint probability table for these data and use the table to answer the remaining questions.
b. What do the marginal probabilities tell you about the age of the U.S. population?
c. What is the probability that a randomly selected individual does not have health insurance coverage?
d. If the individual is between the ages of 18 and 34, what is the probability that the individual does not have health insurance coverage?
e. If the individual is age 35 or over, what is the probability that the individual does not have health insurance coverage?
f. If the individual does not have health insurance, what is the probability that the individual is in the 18–34 age group?
g. What does the probability information tell you about health insurance coverage in the UnitedStates?
