I'm having difficulty understanding this problem. If possible, can you please explain how you derived the answer. Thank! :)

Stocks A and B have the following returns: Stock A 0.11 0.05 0.15 -0.03 0.08 Stock B 0.06 0.04 0.03 0.01 -0.04 4 a. What are the expected returns of the two stocks? b. What are the standard deviations of the returns of the two stocks? C. If their correlation is 0.44, what is the expected return and standard deviation of a portfolio of 66% stock A and 34% stock B? a. What are the expected returns of the two stocks? The expected return for stock A is .072. (Round to three decimal places.) The expected return for stock B is 02(Round to three decimal places.) b. What are the standard deviations of the returns of the two stocks? The standard deviation of the return for stock A is(Round to four decimal places.) The standard deviation of the return for stock B is(Round to four decimal places.) c. If their correlation is 0.44, what is the expected return and standard deviation of a portfolio of 66% stock A and 34% stock B? The expected return for the portfolio is Round to four decimal places.) The standard deviation of the return for the portfolio is (Round to four decimal places.)