SOLUTION: Suppose that 60% of the people who inquire about investments at a certain brokerage firm end up investing in stocks. 50% end up investing in bonds, and 75% end up investing in stoc

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Question 473252: Suppose that 60% of the people who inquire about investments at a certain brokerage firm end up investing in stocks. 50% end up investing in bonds, and 75% end up investing in stocks or bonds or both. What is the probability that a person who inquires about investments at this firm will invest in both stocks and bonds?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: Use the idea that P(A or B) = P(A)+P(B) - P(A and B) where A and B are two events.