CloudRack provides web hosting services on their 5 servers. When a person requests a page from one oftheir hosted websites, the server must find the page and send it to the person's browser. These requestsarrive at the rate of 400 per second. The coefficient of variation of the interarrival times is 1. The processingtime for a server is 0.01 second with a coefficient of variation of 1.(Round your answer to 4 decimal places.)On average, how much time does a request take to be filled (i.e.,include time waiting for a server and the actual processing by theserver)?seconds

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Answered: CloudRack provides web hosting services…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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The owner of a radio station wants to determine how much airtime songs take up. The owner collects the song length in seconds of 10 popular songs. The data are reproduced in the table below. Calculate the mode(s) using a TI-83. TI-83 plus, or TI-84 graphing calculator. Length of Songs in Seconds 279 219 298 134 206 293 165 227 230 212
Empathy means being able to understand what others feel. To see how the brain expresses empathy, researchers recruited 16 couples in their midtwenties who were married or had been dating for at least two years. They zapped the man's hand with an electrode while the woman watched, and measured the activity in several parts of the woman's brain that would respond to her own pain. Brain activity was recorded as a fraction of the activity observed when the woman herself was zapped with the electrode. The women also completed a psychological test that measures empathy. Subject 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Empathy Score 43 46 35 59 64 66 58 47 44 49 56 68 28 71 27 108 Brain Activity -0.129 0.389 0.019 0.378 0.016 0.419 0.109 0.515 0.149 0.746 0.245 0.57 0.219 0.716 0.364 0.762 Given that the equation for the regression line is y^=0.00709x−0.04187y^=0.00709x−0.04187, what is the residual (or deviation), yi−y^iyi−y^i, for subject 14?ANSWER: Speak
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