Using the following historical returns data, calculate the p…

Using the following historical returns data, calculate the population standard deviation for Newport (NEP) Inc.. Year      NEP 2014         20.0%      2015         17.22016           9.02017           6.1 2018         45.0

Using the following historical returns data, calculate the a…

Using the following historical returns data, calculate the arithmetic average return for Newport (NEP) Inc.. Year      NEP 2014         20.0%      2015         17.22016           9.02017           6.1 2018         45.0