1. Assume a stock has an expected rate of return of 8% and a variance of 0.00112. What is the standard deviation for this stock?

2. Assume you were just offered a $400,000 mortgage at a quoted rate of 4.5% and the mortgage calls for equal weekly payments based on a 20-year amortization period. If you were asked to find the amount of your payments using the annuity present value formula, what discount rate would you use in the formula?