Read the Portfolios Lab Instructions document and answer the questions below.

Repeat the portfolio optimization for two stocks: PG and AMZN

Get monthly stock prices from Yahoo Finance for the dates mentioned in the PDF instructions.

Students should have $12$ prices $($one per month$)$ or $11$ returns for each stock.

What is the Risk $($standard deviation of monthly returns$)$ of AMZN stock?

Enter your answer in the following format: $0\mathrm{.}1234$

Hint: The answer is between $0\mathrm{.}0852$ and $0\mathrm{.}1085$

Use dates from $12/01/2022$ to $11/01/2023$ monthly stock prices for both stocks on Yahoo Finance. thank you!