What is the mean life of a light bulb whose life X (hours) has the density f(x)

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What is the mean life of a light bulb whose life X (hours) has the density f(x) = 0.001e–0.001x (x > 0)?

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Advanced Engineering Mathematics

ISBN: 978-0471488859

9th Edition

Authors: ERWIN KREYSZIG

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Question Posted: Nov 07, 2010 04:21 AM

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What is the mean life of a light bulb whose life X (hours) has the density f(x)

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Advanced Engineering Mathematics

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