1. In four of the last five years, your investment earned you the following returns: 15%, -22%, 4%, and 41%. The average return earned over this period was -5%. Calculate the standard deviation of the stock’s returns over the last 5 years.
2. Your coin collection contains 49 1952 silver dollars. If your grandparents purchased them for their face value when they were new, how much will your collection be worth when you retire in 2059, assuming they appreciate at an annual rate of 5.2 percent? (Do not round intermediate calculations and round your final answer to 2 decimal places, e.g., 32.16.)
Future value $