The total number of hours, in units of 100 hours, that a family runs a vacuum cleaner

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The total number of hours, in units of 100 hours, that a family runs a vacuum cleaner over a period of one year is a random variable X having the density function given in Exercise 4.15. Find the variance of X.

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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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The total number of hours, in units of 100 hours, that a family runs a vacuum cleaner

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