You anticipate a booming economy next year with a 20% probability. Otherwise, you expect the economy to be normal. You forecast that a stock will earn a 30% annual return in the event of a boom and 10% otherwise. What's your expected return on this. stock? Answer in percent.

You anticipate a booming economy next year with a 20% probability. Otherwise, you expect the economy to be normal. You forecast that a stock will earn a 30% annual return in the event of a boom and 10% otherwise. What's the standard deviation of returns? Answer in percent.