1. If there is a 20% chance we will get a -3% return, a 30% chance of getting a 5% return, and a 50% chance of getting 15% return. What is the standard deviation for the investment?

*Hint: You should find E(R) first and calculate standard deviation accordingly.

Please round your answer to the fourth decimal. If your answer is 1.11%, then you should input "0.0111".