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 0.05, 0.05, 0.45, and 0.45, 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 $110 or else the amount $ 150 (5 − X) ? Note: It is not generally true that E c Y = c E(Y). The repair facility be better off charging a flat fee of $110 because E 150 (5 − X) =

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 0.05, 0.05, 0.45, and 0.45, 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 $110 or else the amount $ 150 (5 − X) ? Note: It is not generally true that E c Y = c E(Y). The repair facility be better off charging a flat fee of $110 because E 150 (5 − X) =

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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