Al Bundy is evaluating a new advertising program that could increase shoe sales. Possible outcomes and probabilities of the outcomes are shown next. Possible Outcomes Ineffective campaign Normal response Extremely effective Additional Sales in Units 40 190 370 Coefficient of variation Probabilities 0.20 0.30 0.50 Compute the coefficient of variation. (Do not round intermediate calculations. Round your answer to 3 decimal places.)

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