1. The sample variance of the following returns is _______________ and the standard deviation is _________ .
10% , 15%, 20% , 8%
A. 0.29% , 5.0%
B. 0.21% , 4.5%
C. 0.21% , 5.4%
D. 0.29% , 5.4%
2. "Consider the investment project below, which has a four-year investment life (n = 0 through 4).
Project ($)
-3,100
1,800
2,800
3,400
2,100
What is the discounted payback period at an interest rate of 12.6%? Enter your answer as an integer. If the project never pays itself back, enter a 0."