In excel formulas please

Consider the following information. Your portfolio is invested 30 percent each in A and C, and 40 percent in B. What is the expected return of the portfolio? What is the variance of this portfolio? The standard deviation? Input area: State Probability Stock A Stock B Stock Boom 0.15 0.35 0.40 Good 0.45 0.16 0.17 Poor 0.30 (0.01) (0.03) Bust 0.10 (0.10) (0.12) weights 0.30 0.40 (Use cells A6 to E11 from the given information to complete this question.) Output area: Stock A Probability Portfolio return Product Product Boom Good Poor Bust E(R) Standard deviation 0.28 0.09 0.01 (0.09) 0.30 Return deviation Squared deviation Variance