Final answer:
You can purchase stocks through online brokerage platforms or traditional brokerage firms. Diversifying your portfolio helps spread the risk and can lead to higher returns.
Step-by-step explanation:
1. Someone can go to purchase stocks in various places such as online brokerage platforms like E-Trade or TD Ameritrade, or through traditional brokerage firms like Charles Schwab.
2. Diversifying your portfolio is important because it helps to spread out the risk. By investing in a variety of different stocks or assets, you can mitigate the impact of any individual stock or sector performing poorly. This can help protect your investment and potentially lead to higher returns.