There is a 11% chance of an economic boom and a 24% chance of a recession in the next year. Otherwise, the economy is expected to stay normal. You forecast that McDonald's stock will go up 14.8% if the economy is booming, 9.7% if the economy is normal, and go down 5.5 if there is a recession. What is McDonald's expected return under these scenarios? Answer in percent, rounded to one decimal place.

A stock is expected to earn 11.1% over the next year with a 39% probability and 3.4% otherwise. What is the standard deviation of returns based on this scenario analysis? Answer in percent, rounded to one decimal place.