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variance    音标拼音: [v'ɛriəns]
n. 不一致,变化,变异,分歧,不和

不一致,变化,变异,分歧,不和

variance
变异数 方差

variance
n 1: an event that departs from expectations [synonym:
{discrepancy}, {variance}, {variant}]
2: discord that splits a group [synonym: {division}, {variance}]
3: the second moment around the mean; the expected value of the
square of the deviations of a random variable from its mean
value
4: a difference between conflicting facts or claims or opinions;
"a growing divergence of opinion" [synonym: {discrepancy},
{disagreement}, {divergence}, {variance}]
5: the quality of being subject to variation [synonym:
{variability}, {variableness}, {variance}] [ant:
{invariability}, {invariableness}, {invariance}]
6: an official dispensation to act contrary to a rule or
regulation (typically a building regulation); "a zoning
variance"
7: an activity that varies from a norm or standard; "any
variation in his routine was immediately reported" [synonym:
{variation}, {variance}]

Variance \Va"ri*ance\, n. [L. variantia.]
1. The quality or state of being variant; change of
condition; variation.
[1913 Webster]

2. Difference that produces dispute or controversy;
disagreement; dissension; discord; dispute; quarrel.
[1913 Webster]

That which is the strength of their amity shall
prove the immediate author of their variance.
--Shak.
[1913 Webster]

3. (Law) A disagreement or difference between two parts of
the same legal proceeding, which, to be effectual, ought
to agree, -- as between the writ and the declaration, or
between the allegation and the proof. --Bouvier.
[1913 Webster]

4. (Statistics) The expected value of the square of the
deviation from the mean of a randomly distributed
variable; the second moment about the mean. This is also
the square of the {standard deviation}.
[PJC]

{At variance}, in disagreement; in a state of dissension or
controversy; at enmity. "What cause brought him so soon at
variance with himself?" --Milton.
[1913 Webster]

107 Moby Thesaurus words for "variance":
agreement to disagree, alienation, antagonism, apostasy, argument,
argumentation, at variance, change, clashing, conflict, contention,
contradiction, contrariety, contrast, controversy, counter-culture,
cross-purposes, debate, departure, deviation, difference,
difference of opinion, difficulty, disaccord, disaccordance,
disagreement, disapprobation, disapproval, disconformity,
discongruity, discord, discordance, discordancy, discrepancy,
discreteness, disharmony, disparity, dispute, dissatisfaction,
dissension, dissent, dissentience, dissidence, dissimilarity,
dissonance, distinction, distinctness, disunion, disunity,
divergence, divergency, diversity, dividedness, division,
dropping out, faction, far cry, fluctuation, heterogeneity,
in disagreement, in dispute, inaccordance, incompatibility,
incongruity, inconsistency, inconsonance, inequality,
inharmoniousness, inharmony, irreconcilability, jarring,
minority opinion, misunderstanding, mixture, negation,
nonagreement, nonassent, nonconcurrence, nonconformity, nonconsent,
odds, opposition, oppugnancy, otherness, polarization, quarrel,
recusance, recusancy, rejection, repudiation, repugnance, rift,
schism, secession, separateness, separation, severing, strife,
unconformity, underground, unharmoniousness, unlikeness,
unorthodoxy, variation, variegation, variety, withdrawal

VARIANCE, pleading, evidence. A disagreement or difference between two parts
of the same legal proceeding, which ought to agree together. Variances are
between the writ and the declaration, and between the declaration and the
evidence.
2.-1. When the variance is a matter of substance, as if the writ sounds
in contract, and the other in tort, and e converso, or if the writ demands
one thing or subject, and the declaration another, advantage may be taken of
it, even in arrest of judgment; for it is the writ which gives authority to
the court to proceed in any given suit, and, therefore, the court can have
no authority to hear and determine a cause substantially different from that
in the writ. Hob. 279; Cro. Eliz. 722. But if the variance is in matter of
mere form, as in time or place, when that circumstance is immaterial,
advantage can only be taken of it by plea in abatement. Yelv. 120; Latch.
173; Bac. Ab. Abatement, I; Gould, Pl. c. 5, Sec. 98 1 Chit. Pl. 438.
3.-2. A variance by disagreement in some particular point or points
only between the allegation and the evidence, when upon a material point, is
as fatal to the party on whom the proof lies, as a total failure of
evidence. For example; the plaintiff declared in covenant for not repairing,
pursuant to the covenant in a lease, and stated the covenant, as a covenant
to "repair when and as need should require;" and issue was joined on a
traverse of the deed alleged. The plaintiff at the trial produced the deed
in proof, and it appeared that the covenant was to "repair when and as need
should require, and at farthest after notice:" the latter words having been
omitted in the declaration. This was held to be a variance, because the
additional words were material, and qualified the effect of the contract. 7
Taunt. 385. But a variance in mere form or in matter quite immaterial, will
not be regarded. Str. 690. Vide 1 Vin. Ab. 41; 12 Vin. Ab. 63; 21 Vin. Ab.
538 Com. Dig. Abatement, G 8, H 7; Id.; Amendment, D 7, 8, V 3: Bail, R 7;
Obligation, B 4; Pleader, C 14, 15, L 24, 30; Record, C, D, F; Phil. Ev.
Index, 11. t. Stark. Ev. Index, h.t., Roscoe's Ev. Index, h.t.; 18 E. C. L.
R. 139, 149, 153 1 Dougl. 194; 2 Salk. 659; Harr. Dig. h.t. Chit. Pl. Index,
h.t.; United States Dig. Pleading II, d and e; Bouv. Inst. Index: h.t.


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  • Variance - Wikipedia
    In probability theory and statistics, variance is the expected value of the squared deviation from the mean of a random variable The standard deviation is obtained as the square root of the variance Variance is a measure of dispersion, meaning it is a measure of how far a set of numbers are spread out from their average value
  • What Is Variance in Statistics? Definition, Formula, and Example
    Variance is a statistical measurement of how large of a spread there is within a data set It measures how far each number in the set is from the mean (average), and thus from every other number
  • Standard Deviation and Variance - Math is Fun
    Deviation means how far from the normal The Standard Deviation is a measure of how spread out numbers are Its symbol is σ (the greek letter sigma) The formula is easy: it is the square root of the Variance So now you ask, "What's the Variance?" The Variance is defined as: The average of the squared differences from the Mean
  • How to Calculate Variance | Calculator, Analysis Examples
    The variance reflects the variability of your dataset by taking the average of squared deviations from the mean
  • Variance - GeeksforGeeks
    Variance is a number that tells us how spread out the values in a data set are from the mean (average) It shows whether the numbers are close to the average or far away from it
  • Variance: Definition, Formulas Calculations - Statistics by Jim
    Variance is a measure of variability in statistics It assesses the average squared difference between data values and the mean Unlike some other statistical measures of variability, it incorporates all data points in its calculations by contrasting each value to the mean
  • What is Variance in Statistics? - Omni Calculator
    Variance is the degree of variability within a dataset In other words, it tells you how far the data points are from the mean, making it a measure of data variability A high variance means they are more spread out It essentially shows to what extent members of a group differ from one another
  • Variance - Definition, Symbol, Formula, Properties, and Examples
    ‘Variance’ refers to the spread or dispersion of a dataset in relation to its mean value A lower variance means the data set is close to its mean, whereas a greater variance indicates a larger dispersion
  • 3 Ways to Calculate Variance - wikiHow
    What is variance? Variance is a measure of how spread out a data set is, and we calculate it by finding the average of each data point's squared difference from the mean
  • Variance: Definition, Step by Step Examples - Statistics How To
    Variance measures the spread between numbers in a data set It helps us determine how far each number in the set is from the mean or average, and from every other number in the set





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