A financial consultant has classified his clients according to their age and the composition of their investment portfolio (primarily bonds, primarily stocks, or a balanced mix of bonds and stocks). The proportions of clients falling into the various categories are shown in the following table:

Portfolio Composition

Age	Bonds	Stocks	Balanced
Above 40	0.10	0.15	0.10
Below 40	0.15	0.25	0.25

Questions

1. What is the probability of being above 40 or having stocks?
2. What is the probability of being above 40?
3. What is the probability of having stocks if a client is above 40?
4. What is the probability of having bonds if a client is above 40?