What formula should I use for standard deviation? It must be entered as an excel formula

D 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.) 18.78% Expected return Standard Deviation ... Sheet1 ... + READY U - Attempt(s) 3/3 Step: Take the square root of the sum of the probability-weighted squared deviations from the expected return. 100% Hint