Engineering, 07.03.2020 05:46 rebeccacruzz2017
Server A sequentially handles 80 jobs, each of whose service times are i. i.d. (independent, identically distributed) with mean 50 milliseconds and standard deviation 10 milliseconds Server B has an analogous workload, but its 80 jobs each have mean 52 milliseconds and standard deviation 20 milliseconds (a) Estimate the probability that server A finishes in less than 3980 milliseconds. (b) Estimate the probability that server B finishes in less than 3980 milliseconds. (c) Suppose that the two random variables Xi ~ N( i,ơ?), for i E {1,2}, are independent. What is EX1-X2)? What is Var(X-%)? (d) Estimate the probability that server B finishes before A. You may use without proof the fact that, if X1 and X2 are independent normal random variables, then aXi + bX2 is also normal, for any constants a and b (and that the analogous statement holds for random variables that are approximately normal) (e) If you did part (d) correctly, you will discover that B has a nonnegligible chance of finishing earlier than A, even though A has the smaller mean completion time. Explain how this is possible
Answers: 2
Engineering, 03.07.2019 15:10, margaret1758
If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.
Answers: 1
Engineering, 04.07.2019 18:10, niicoleassssssf
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:20, safiyabrowne7594
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
Engineering, 04.07.2019 19:10, Lexi5170
A)-explain briefly the importance of standards in engineering design. b)- what is patent? c)-explain the relationship between these standards: b. s. and b. s.en d)- in engineering design concepts, types of loads and how they act are important factors. explain.
Answers: 3
Server A sequentially handles 80 jobs, each of whose service times are i. i.d. (independent, identic...
Social Studies, 28.11.2020 20:00
Biology, 28.11.2020 20:00
Business, 28.11.2020 20:00
English, 28.11.2020 20:00
Business, 28.11.2020 20:00
Social Studies, 28.11.2020 20:00
Mathematics, 28.11.2020 20:00