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  • 1. Module 14A EXPECTED VALUE AND STANDARD DEVIATION OBJECTIVE: This program calculates the expected value (cell B56), variance (E56), standard deviation (E58), the coefficient of variation (E60), and the Z-statistic (E62), given a set of possible outcomes and the probability distribution. INPUTS (will appear in blue): 1) Enter up to five probabilities (as decimals) in cells A27 - A31. The total must add up to 1. 2) Enter up to five outcomes (R), corresponding to the probabilities, in cells B27 - B31. 3) If a Z-statistic is desired, enter a value for X in cell B40. The caret ^ in formulas signifies an exponent: x^2 is x squared. RISK CALCULATIONS Sample data have been entered as an example. P R R-ER (R-ER)^2 P*(R-ER)^2 0.10 1000 -2000 4000000.00 400000.00 0.25 2000 -1000 1000000.00 250000.00 0.30 3000 0 0.00 0.00 0.25 4000 1000 1000000.00 250000.00 0.10 5000 2000 4000000.00 400000.00 1.00 3000 Variance 1300000 Stand. dev. 1140.18 Coeff. of var. 0.380 X 1000 Z-statistic -1.7541