Answered: (a) Calculate E(X) and then E(5-X).… | bartleby

College Algebra

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter7: Matrices And Determinants

Section7.2: Operations With Matrices

Problem 12ECP

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Possible values of X, the number of components in a system submitted for repair that must be replaced, are 1, 2, 3, and 4 with corresponding probabilities 0.35, 0.15, 0.35, and 0.15, respectively.
(a) Calculate E(X) and then E(5 - X).
E(X)
E(5-X) =
(b) Would the repair facility be better off charging a flat fee of $70 or else the amount $
150
(5-X)
The repair facility ---Select--- be better off charging a flat fee of $70 because E
]=
150
(5-X)]
? Note: It is not generally true that : E ( =) =
E(Y)

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