The correct formula for excel please!!

Following are four economic states, their likelihoods, and the potential returns. Economic State Fast growth Slow growth Recession Depression Probability 0.33 0.42 0.15 0.10 Return 56% 15% -12% -42% Compute the expected return and standard deviation. (Do not round intermediate calculations and round your answers to 2 decimal places.) Expected return Standard Deviation Sheet1 ... + DY