In an article about investment alternatives, Money magazine reported that drug stocks provide a potential for long-term

Question:

In an article about investment alternatives, Money magazine reported that drug provide a potential for long-term growth, with over 50% of the adult population of the United States taking prescription drugs on a regular basis. For adults age 65 and older, 82% take prescription drugs regularly. For adults age 18 to 64, 49% take prescription drugs regularly.
The age 18-64 age group accounts for 83.5% of the adult population (Statistical Abstract of the United States, 2008).
a. What is the probability that a randomly selected adult is 65 or older?
b. Given an adult takes prescription drugs regularly, what is the probability that the adult is 65 or older? Stocks
Stocks or shares are generally equity instruments that provide the largest source of raising funds in any public or private listed company's. The instruments are issued on a stock exchange from where a large number of general public who are willing...