Please complete your cash flow inputs and calculation. Period Performance: Period Performance 2016 15% 2017 1% 2018 10% 2019 Questions: -2% a. What is the arithmetic average return over the past 4 years? (2 Points) b. What is the standard deviation of this sample of returns? (4 Points) ABC c. What distribution of returns would you expect 99% of the time? (1.5 Points)