Kruskal-Wallis one-way analysis of variance (622 bytes)
1: ...e analogous one-way [[analysis of variance]], the Kruskal-Wallis test does not assume a [[normal distribution|norm...
9: ...nks in one-criterion variance analysis. ''Journal of the American Statistical Association'' '''47''' (...

Analysis of variance (2849 bytes)
1: ...s '''Fisher's ANOVA''' or '''Fisher's analysis of variance'''
5: There are three conceptual classes of such models:
7: ... models assume that the data describe a hierarchy of different populations whose differences are const...
10: ...d the effects are linear, a [[linear regression]] analysis may be appropriate.)
14: ...istribution]] which describes the associated sums of squares.

Variance analysis (accounting) (418 bytes)
1: ...and the [[actual amount]] incurred/sold. Variance analysis can be carried for both costs and revenues.
3: [[Category: Variance analysis]]

Martin Kruskal (853 bytes)
1: ...980) and a 1993 recipient of the [[National Medal of Science]].
3: ...scovered the [[Kruskal-Wallis one-way analysis of variance]]).

Joseph Kruskal (1344 bytes)
1: ...d was first president of the Fair Housing Council of [[South Orange, New Jersey|South Orange]] and [[M...
3: ...eveloped the [[Kruskal-Wallis one-way analysis of variance]]).

Kruskal's algorithm (3815 bytes)
1: ...d component]]). Kruskal's algorithm is an example of a [[greedy algorithm]].
4: * create a forest ''F'' (a set of trees), where each vertex in the graph is a separ...
10: ...y one component and forms a minimum spanning tree of the graph.
12: This algorithm first appeared in ''Proceedings of the American Mathematical Society'', pp. 48-50 in...
14: ...O(m ''alpha''(n)), where ''alpha'' is the inverse of the [[Ackermann_function|Ackermann Function]].

Variance (6825 bytes)
1: ...rticle is about mathematics. Alternate meaning: [[variance (land use)]].''
3: ...variance''' of a [[random variable]] is a measure of its [[statistical dispersion]], indicating how fa...
4: The variance of a [[real number|real]]-valued random variable is ...
7: ...e]] (mean) of the random variable ''X'', then the variance is
11: ...hus the ''mean squared deviation''. The variance of random variable ''X'' is typically designated as ...

Cosmic variance (3815 bytes)
1: ...related to the fact that we only observe one copy of the Universe.
3: ... (1/10⁹) of the global comoving volume of the [[Universe]].
5: ...rvable sphere]], are considered to be the results of some [[random]] processes which follow some gener...
9: ... a slightly smaller scale gives us a small number of realizations.
11: ... more of a statement about one's belief in levels of statistical significance rather than a convention...

Variance (accounting) (2244 bytes)
1: ...amount]] and the [[actual amount]] incurred/sold. Variances can be computed for both costs and revenues.
3: ...e difference between those two on the performance of the entity or company.
5: ==Types of variances==
6: ...an be divided according to their effect or nature of the underlying amounts.
8: ... variance''' is concerned, there are two types of variances:

Allan variance (1265 bytes)
1: ...wn as '''two-sample variance''', is a measurement of accuracy in [[clock]]s.
2: ...es of the differences between successive readings of the [[frequency deviation]] sampled over the samp...
3: ... used between samples: therefore it is a function of the sample period, as well as the distribution be...
4: A low Allan variance is a characteristic of a [[clock]] with good stability over the measured...
6: The Allan [[variance]] is given by

Variance (land use) (840 bytes)
1: ...perty from complying with the zoning regulation. Variances are required in the United States in order to pr...
3: ...esulting in an unlawful [[regulatory taking]]. A variance exempting the property from the setback regulatio...

Law of total variance (2492 bytes)
1: ... same [[probability space]], and the [[variance]] of ''X'' is finite, then
5: ...; the second is the '''explained component of the variance'''.
7: ...writers on probability call this the "conditional variance formula" or by other rather prosaic and unsuggest...
9: ...''Y''). Similar comments apply to the conditional variance.)
11: ==The square of the correlation==

Algorithms for calculating variance (2023 bytes)
1: ...ance]] of a [[statistical population|population]] of size ''n'' is:
3: :<math>\mathrm{Variance} = \frac {n\sum_{i=1}^{n} x_i^2 - (\sum_{i=1}^{n}...
5: ...ating the unbiased estimation of the population [[variance]] from ''n'' finite [[statistical sample|sample]]...
7: :<math>\mathrm{Variance} = \frac {n\sum_{i=1}^{n} x_i^2 - (\sum_{i=1}^{n}...
9: The method of calculation may be more easily understood from th...

Direct material price variance (1467 bytes)
1: ...rial usage variance]]) of [[direct material total variance]].
3: Let us assume that standard direct material cost of [[widget]] is as follows:
4: :2 kg of [[unobtainium]] at &euro; 60 per kg ( = &euro; 12...
5: ...riod, 100 widgets were manufactured, using 212 kg of [[unobtainium]] which cost &euro; 13,144.
7: Under those assumptions [[direct material price variance]] can be calculated as:

Direct material usage variance (1604 bytes)
1: ...rial price variance]]) of [[direct material total variance]].
3: Let us assume that standard direct material cost of [[widget]] is as follows:
4: :2 kg of [[unobtainium]] at &euro; 60 per kg ( = &euro; 12...
5: ...riod, 100 widgets were manufactured, using 212 kg of [[unobtainium]] which cost &euro; 13,144.
7: Under those assumptions [[direct material usage variance]] can be calculated as:

Direct material total variance (1535 bytes)
1: ...cost in terms of material. Direct material total variance can be divided into two components:
2: *the [[direct material price variance]],
3: *the [[direct material usage variance]].
5: Let us assume that standard direct material cost of [[widget]] is as follows:
6: :2 kg of [[unobtainium]] at &euro; 60 per kg ( = &euro; 12...

Wallis (416 bytes)
2: * German name for canton of Switzerland '''[[Valais]]'''

Wallis and Futuna (10696 bytes)
1: ...al]] [[island]]s ([[Wallis]], [[Futuna]], and [[Alofi]]) with fringing [[reef]]s located in the South ...
8: <td align="center" width="140px">coat of arms</td></tr>
9: <tr><td align="center" width="140px">([[Flag of Wallis and Futuna|In Detail]])</td>
13: <tr><td>[[Official language]] </td><td>[[French la...
16: <tr><td>President of the Territorial Assembly </td><td...

Wallis Simpson (6439 bytes)
1: ...man to receive [[TIME|Time magazine]]'s, [[Person of the Year]] designation in [[1936]].
3: [[Image:wallis_simpson.JPG|right|Photo of Simpson]]
5: ...seven months after their wedding. Her father died of [[tuberculosis]] when she was five months old.
7: .... She soon became his mistress (although the Duke of Windsor denied to his death that she was his mist...
9: ...ted Kingdom|Prime Minister]] and the [[Archbishop of Canterbury]], but no acceptable compromise was fo...

Hal B. Wallis (3019 bytes)
3: ...es]], [[California]], where he found work as part of the publicity department at [[Warner Bros.]] in [...
5: ... fifty years, he was involved with the production of more than 400 feature-length movies.
7: ...aimed movies as well as the production of several of the [[Elvis Presley]] movies.
9: ...'' in [[1943]]. For his consistently high quality of motion picture production, he was twice honored w...
11: Hal B. Wallis passed away at eighty-eight years of age in [[Rancho Mirage, California]]. He is inter...

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