The machine component described in Exercise 11 has a 50% chance of lasting at least how long?
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The machine component described in Exercise 11 has a 50% chance of lasting at least how long?
Exercise 11
The useful life (in hundreds of hours) of a certain machine component is a random variable X with the cumulative distribution function F (x) = 19x2, 0 ≤ x ≤ 3.
(a) Find E(X ), and give an interpretation of this quantity.
(b) Compute Var (X ).
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Related Book For 
Calculus And Its Applications
ISBN: 9780134437774
14th Edition
Authors: Larry Goldstein, David Lay, David Schneider, Nakhle Asmar
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