pas SCakETS B5502 XP M The manager of a fast-food restaurant determines that the average time that her customers wait for service is mu (a) Find the probability that a customer has to wait more than 4 minuten. (Round your answer to the decimal places.) (b) Find the probability that a customer is served within the first minute. (Round your answer to three decimal places.) (c) The manager wants to advertise that anybody who isn't served within a certain number of minutes gets a tree- hamburger. But she doesn't want to give away free hamburgers to more than 2% of her castomers. What number of minutes should the advertisement use? (Round your answer to the nearest minute.) min Need Help? Read It Which Master Talk to a Tuter Submit Answer Save Progress Practice Another Version Submit Assignment Save Assignment Progress