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The time to failure in thousands of hours of an electronic equipment used in a manufactured computer has the density function.

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The time to failure in thousands of hours of an electronic equipment used in a manufactured computer has the density function. f(x) = {(3e-3x x > 0),(0, elsewhere). Find the expected life of this electronic equipment.

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Given p.d.f is f(x) = {(3e-3x x > 0),(0, elsewhere)

Expected life

Only E(X) is required.

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