The probability of the economy booming is 8 percent, while it is 70 percent for being normal, and 22 percent for being recessionary. A stock is expected to
return 18.3 percent in a boom, 7.4 percent in a normal economy, and lose 6.4 percent in a recession. What is the standard deviation of the returns?
Multiple Choice
О
8.61%
О
6.72%
O
6.94%
О
7.32%