28. Let X1, X2, and X3 represent the times necessary toperform three successive repair tasks at a servicefacility. Suppose they are independent, normalrv's with expected values l1, µ2, and µ3 and var-iances of, ož, and oz, respectively.а. Ifand of = o3 =Hi = µ2 = µ3 = 60o = 15, calculate P(X1 + X2 + X3 < 200).What is P(150 < X1 + X2 + X3 < 200)?b. Using the u;'s and o;'s given in part (a), calcu-late P(55 < X) and P(58 < X < 62).c. Using the u;'s and o;'s given in part (a), calcu-late P(-10 < X -.5X2 — .5Xз < 5).d. If M 3 40, 12 — 50, Из — 60, от — 10,o3 = 12, and o = 14X2 + X3 < 160) and P(X1 + X2 > 2X3).여= 10,calculate P(X1 +

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Let X1, X2, and X3 represent the times necessary to perform three successive repair tasks at a service facility. Suppose they are independent, normal rv's with expected values µ1, H2, and µz and var- iances o?, o3, and o, respectively.

Let X1, X2, and X3 represent the times necessary to perform three successive repair tasks at a service facility. Suppose they are independent, normal rv's with expected values µ1, H2, and µz and var- iances o?, o3, and o, respectively.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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