$9.$ Calculating Returns and Variability

You$$ve observed the following past returns : $-24\%,13\%,29\%,2\%,$ and $21\%$

a$)$ What is the arithmetic average returns?

b$)$ What is the variance and standard deviation of the returns?

$10.$ Calculating Real Returns and Risk Premiums

For problem $9,$ suppose the average inflation rate was $1\mathrm{.}7\%,$ and the average T$-$bill rate was $2\mathrm{.}3\%$

a$)$ What was the average real return on the stock?

b$)$ What was the average nominal risk premium on the stock?