The opening prices, on January 2 for the years 2016 through 2020, for Amazon (AMZN) stock are as follows:

The % change column measures the percent change of AMZN stock price from the previous year.

(a) What is the arithmetic mean for percent change for the four years from 2016 to 2020?

(b) What is the geometric mean for percent change for the four years from 2016 to 2020? Solve with the geometric mean formula:

Geometric Mean = [(1+r1)*(1+r2)*(1+r3)*(1+r4)*(1+rn)]¹ -1

(c) What is the geometric mean for percent change for the four years from 2016 to 2020? Solve with: PV = -699.52 and FV=2453.55

(d) On January 2, 2021 the opening price of AMZN was $1,945.78, what was the percent change from the previous year (January 2, 2020)?

(e) Using the additional information for AMZN price of $1,945.78 on January 2, 2021, compute both the arithmetic mean and geometric mean for the five years from January 2, 2016 to January 2, 2021.