I really need help with these questions. Thank you!

Expected return and standard deviation. Use the following information to answer the questions: a. What is the expected return of each asset? b. What is the variance and the standard deviation of each asset? c. What is the expected return of a portfolio with 8% in asset J, 52% in asset K, and 40% in asset L? d. What is the portfolio's variance and standard deviation using the same asset weights from part (c)? Hint: Make sure to round all intermediate calculations to at least seven (7) decimal places. The input instructions, phrases in parenthesis after each answer box, only apply for the answers you will type. Probability of State Return on Asset J in State Return on Asset L in State 0.27 0.060 Return on Asset K in State 0.190 0.100 0.020 -0.090 State of Economy Boom Growth Stagnant Recession 0.270 0.36 0.060 0.25 0.12 0.060 0.060 0.230 0.060 -0.190