History of Arithmetic mean

	Revision 4 . . September 4, 2001 3:38 am by (logged).165.116.xxx
	Revision 3 . . (edit) June 30, 2001 3:53 pm by Larry Sanger

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Changed: 8c8

see also weighted mean, variance, central tendency

see also [geometric mean]?, [harmonic mean]?, weighted mean, variance, central tendency