Suppose it is known that the life X of a particular compressor in hours has the density

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Suppose it is known that the life X of a particular compressor in hours has the density function(a) Find the mean life of the compressor.(b) Find E(X2).(c) Find the variance and standard deviation of the random variableX.

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Probability & Statistics For Engineers & Scientists

ISBN: 9780130415295

7th Edition

Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying

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Question Posted: Feb 03, 2011 03:16 AM

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Suppose it is known that the life X of a particular compressor in hours has the density

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-z/900 r> 0, fix) elsewhere.

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a EX 900 x900 dx 900 ...View the full answer

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