Arithmetic Mean - Revision history

Strangelv: tagged to move to exd

2007-04-17T00:06:57Z

tagged to move to exd

Mdelaney at 11:10, 11 April 2007

2007-04-11T11:10:30Z

Mdelaney: /* TeX */

2007-04-11T01:05:00Z

TeX

Davew at 01:01, 11 April 2007

2007-04-11T01:01:55Z

Mdelaney at 01:00, 11 April 2007

2007-04-11T01:00:43Z

Davew at 00:13, 11 April 2007

2007-04-11T00:13:55Z

Davew at 00:13, 11 April 2007

2007-04-11T00:13:31Z

Strangelv: 1 revision(s)

2007-03-08T18:51:35Z

1 revision(s)

New page

{{Autostub}}
{{Initial Proof Needed}}
'''Arithmetic Mean'''

 One of several accepted measures of central tendency, physically
analogous to ''center of gravity''. Pertaining to a set of numbers
<math> x 1, x2,...xn, the arithmetic mean,
usually denoted by the symbol '''Missing Image:IMG SRC="equat/xbar.gif" alt="mean symbol"''', is the sum x1+x2+...+xn divided by n. Also called '' mean,
average, simple average ''.

 ''Since the word ''mean'' is also
applied to other measures of central tendency, such as weighted
means, geometric means, harmonic means, the adjective ''arithmetic''
is used for clarity. However, when used without further qualification,
the term ''mean'' is understood as ''arithmetic mean.

==References==
''This article is based on NASA's [[NASA SP-7|Dictionary of Technical Terms for Aerospace Use]]''
[[Category%3ADefinitions]]
[[Category%3ANASA SP-7]]
[[Category%3ADefinitions with Missing Images]]

← Older revision		Revision as of 00:06, 17 April 2007
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	{{Autostub}}		{{Autostub}}
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	'''Arithmetic Mean'''		'''Arithmetic Mean'''

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 <BR/>One of several accepted measures of central tendency, physically
 analogous to ''center of gravity''. Pertaining to a set of numbers
-x <sub>1</sub>, x<sub>2</sub>,...x<sub>n</sub>, the arithmetic mean,
+<strong><math>x_1, x_2,...x_n</math></strong>, the arithmetic mean,
-usually denoted by the symbol [[image:xbar.gif|"mean symbol"]], is the sum x<sub>1</sub>+x<sub>2</sub>+...+x<sub>n</sub> divided by n. Also called ''  mean,
+usually denoted by the symbol <strong><math>\bar{x}</math></strong>, is the <strong>sum <math>x_1 + x_2 + ... + x_n</math></strong> divided by '''n'''. Also called ''mean,
-average, simple average ''.
+average, simple average''.
 <BR>''Since the word ''mean'' is also
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 [[Category%3ADefinitions]]
 [[Category%3ANASA SP-7]]

← Older revision		Revision as of 01:05, 11 April 2007
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	<nowiki><math>\bar{x}</math></nowiki> produces <math>\bar{x}</math><br>		<nowiki><math>\bar{x}</math></nowiki> produces <math>\bar{x}</math><br>
	<nowiki><math>x_1 + x_2 + ... + x_n</math></nowiki> produces <math>x_1 + x_2 + ... + x_n</math>		<nowiki><math>x_1 + x_2 + ... + x_n</math></nowiki> produces <math>x_1 + x_2 + ... + x_n</math>
		+
		+	For more on TeX in mediawiki see [[Help:Math]]

← Older revision		Revision as of 01:00, 11 April 2007
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	[[Category%3ANASA SP-7]]		[[Category%3ANASA SP-7]]
	[[Category%3ADefinitions with Missing Images]]		[[Category%3ADefinitions with Missing Images]]
		+
		+	==TeX==
		+	<nowiki><math>\bar{x}</math></nowiki> produces <math>\bar{x}</math><br>
		+	<nowiki><math>x_1 + x_2 + ... + x_n</math></nowiki> produces <math>x_1 + x_2 + ... + x_n</math>

@@ Line 7: / Line 7: @@
 analogous to ''center of gravity''. Pertaining to a set of numbers
 x <sub>1</sub>, x<sub>2</sub>,...x<sub>n</sub>, the arithmetic mean,
-usually denoted by the symbol [[image:xbar.gif "mean symbol"]], is the sum x<sub>1</sub>+x<sub>2</sub>+...+x<sub>n</sub> divided by n. Also called ''  mean,
+usually denoted by the symbol [[image:xbar.gif|"mean symbol"]], is the sum x<sub>1</sub>+x<sub>2</sub>+...+x<sub>n</sub> divided by n. Also called ''  mean,
 average, simple average ''.

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 {{Autostub}}
-{{Initial Proof Needed}}
 '''Arithmetic Mean'''