2) Over the past five years, your investment provided the following percentage returns:

Year	Annual Return
2016	11%
2017	-18%
2018	-21%
2019	20%
2020	34%

Calculate the following statistics: (1/1000 of one percent without % sign, e.g. 12.671, if a negative percentage, -9.56):

1) Arithmetic mean for annual returns Answer

2) Standard deviation (sample)