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Question: For each of the systems listed, sketch the logic of a process-oriented model and of an event-oriented model. For both approaches, develop and simulate the model in any language:
• a central-server queueing model: when a job leaves the CPU queue, it joins the UO queue with shortest length.
• a queueing model of a database system, that implements fork join: a job receives service in two parts. When it first enters the server it spends a small amount of simulation time generating a random number of requests to disks. It then suspends (freeing the server) until such time as all the requests it made have finished, and then enqueues for its second phase of service, where it spends a larger amount of simulation time, before finally exiting. Disks may serve requests from various jobs concurrently, but serve them using FCFS ordering. Your model should report on the statistics of a job in service-how long (on average) it waited for phase 1, how long it waits on average for its UO requests to complete, and how long it waits on average for service after its UO requests complete.
Describe some of the important criteria that you would use in selecting a project for analysis and design. In your view, what are the three most important criteria?
A store selling Mother's Day cards must decide 6 months in advance on the number of cards to stock. Reordering is not allowed.
Generate appropriate histograms or box plots. Find appropriate statistics that will help to understand the data set. Are there any notable features? Are there any outliers? Describe the key elements of center, variation, distribution, and outliers..
What two variables have the strongest positive strength of relationship?
Look up the rules of the old French card game of rencontres. Describe these rules and describe the work of Pierre Raymond de Montmort on le problème.
Find the Taylor polynomial of degree n approximating the given function near x = 0. Using a graphing utility, sketch the given function and the Taylor approximation on the same coordinate system.
Reduce the equation to one of the standard forms, classify the surface, and sketch it.
Determine the equation of the tangent line to f(x) = x2(2x+1)2 at x =1. Find the y' For x2y + 4(2 - y2)2.5 = 5y2 - 5
1. consider the following data measured in a sample of n25 undergraduates in an on-campus survey of health behaviors.
What are the differences in populations served by these hospitals? Are they urban or rural? Do the services vary? Explain your answer.
A company manufactures only one product. The quantity, q, of this product produced per month depends on the amount of capital, K, invested.
For the region described in the previous exercise, use a spreadsheet with n = 100 rectangles to approximate the area.
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