2 A stock has returns for the past five years of 42% , 34%, -52%, 23%, and -28%. What is the standard deviation of these returns?

3 You have observed the following returns on ABC's stocks over the last five years:

3.5%, 8%, 3.5%, 13.5%, 3%

What is the geometric average returns on the stock over this five-year period.

4 Suppose the returns for Stock A for last six years was 4%, 7%, 8%, -2%, 9%, and 7%. Compute the standard deviation of the returns.

5 You have observed the following returns on ABC's stocks over the last five years: 2.8%, 9.8%, 8.3%, 13.3%, 3.2% What is the arithmetic average returns on the stock over this five-year period.