C*E|0 applecreditunionr... e NewTaiJ Semings M Gmall VouTube 9 Maps & Translate 9. [11 Points] DETAILS SCALC9 8.5.502.XP.M|. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The manager of a fastfood restaurant determines that the average time that her customers wait for service is 2.5 minutes. (a) Find the probability that a customer has to wait more than 4 minutes. (Round your answer to three decimal places.) :l (b) Find the probability that a customer is served within the rst minute. (Round your answer to three decimal places.) E (c) The manager wants to advertise that anybody who isn't served within a certain number of minutes gets a free hamburger. But she doesn't want to give away free hamburgers to more than 1% of her customers. What number of minutes should the advertisement use? (Round your answer to the nearest minute.) Need Help? Submit Answer ' 10. [-14 Points] DETAILS SCALC9 8.5.008. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER e . e . u o applecreditunionr... e NewTalJ Semings M Gmall I VouTube 9 Maps & Translate 10. [-14 Points] SCALCB 8.5.008. | MY NOTES l l ASKVOUR TEACHER l | PRACTICE ANOTHER l Consider the following function whose graph is shown. (a) Explain why the function whose graph is shown above is a probability density function. 0 The derivative of the function is constant. 0 The values of both endpoints of the function are 0. O The total area under the function is 1. O The highest value of the function is 0.2. O The integral of the function is 10. (b) Use the graph to find the following probabilities. (Round your answers to three decimal places.) (i) p(x