Select the correct answer. rachel needs to make a presentation on ethics and etiquettes in college. she has about 30 minutes to deliver her complete presentation. how can rachel ensure that the presentation is completed within the specified time frame of 30 minutes? a. use the slide timing feature to rehearse and set the time per slide b. use a lesser number of slides to reduce the total time taken for the presentation c. use the view slideshow tab to set up the timing for the presentation d. use reduced content to complete the presentation on time e. use a simple slide layout to move through slides faster

In any one-minute interval, the number of requests for a popular web page is a poisson random variable with expected value 240 requests. (a) a web server has a capacity of requests per minute. if the number of requests in a one-minute interval is greater than the server is overloaded. use the central limit theorem to estimate the smallest value of for which the probability of overload is less than 0.035. note that your answer must be an integer. also, since this is a discrete random variable, don't forget to use "continuity correction". = 268 (b) now assume that the server's capacity in any one-second interval is ⌊/60⌋, where ⌊⌋ is the largest integer ≤ (this is called the floor function.) for the value of derived in part (a), what is the probability of overload in a one-second interval? this time, don't approximate via the clt, but compute the probability exactly.