(a) Show that the sample variance is unchanged if a constant c is added to or subtracted...

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(a) Show that the sample variance is unchanged if a constant c is added to or subtracted from each value in the sample.
(b) Show that the sample variance becomes c2 times its original value if each observation in the sample is multiplied by c.

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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 04, 2011 05:17 AM

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(a) Show that the sample variance is unchanged if a constant c is added to or subtracted...

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a Replace X in S2 by X c for i 12n T...View the full answer

Probability & Statistics For Engineers & Scientists

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