Can someone help me please?

Below is annual stock return data on Hollenbeck Corp and Luzzi Edit, Inc. What is the average return and standard deviation for each stock? (Round answers to 2 decimal places, e.g. 52.75.) eTextbook and Media Attempts: 0 of 2 used (b) What is the expected portfolio return on a portfolio comprised of i. 25\% Hollenbeck Corp and 75\% Luzzi Edit? ii. 50\% Hollenbeck Corp and 50\% Luzzi Edit? iii. 75\% Hollenbeck Corp and 25\% Luzzi Edit? (Round answers to 3 decimal places, e.g. 5.275.)