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 The red population has mean 100 and variance 100 (SD=10) while the blue population has mean 100 and variance 2500 (SD=50) where SD stands for Standard Deviation In probability theory and statistics, variance is the expected value of the squared deviation from the mean of a random variable
方差_百度百科 方差(variance)这个名词率先由罗纳德·费希尔(Ronald Fisher)在1918年发表的论文《孟德尔遗传假定下的亲缘之间的相关性》 (《The Correlation between Relatives on the Suppositionof Mendelian Inheritance》 [3])中提出。
方差(variance)、标准差(Standard Deviation)、均方差、均方根值(RMS)、均方误差(MSE)、均方根误差(RMSE) 方差 (variance):衡量随机变量或一组数据时离散程度的度量。 概率论 中方差用来度量随机变量和其数学期望(即均值)之间的偏离程度。
偏差(Bias)与方差(Variance) - 知乎 Bias和Variance分别从两个方面来描述我们学习到的模型与真实模型之间的差距。 Bias 是用 所有可能的训练数据集 训练出的 所有模型 的输出的 平均值 与 真实模型 的输出值之间的差异。 Variance 是 不同的训练数据集训练出的模型 输出值之间的差异。
Variance - GeeksforGeeks Variance is defined as the square of the standard deviation, i e , taking the square of the standard deviation for any group of data gives us the variance of that data set
Standard Deviation and Variance - Math is Fun Sample Variance = 108,520 4 = 27,130 Sample Standard Deviation = √27,130 = 165 (to the nearest mm)
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
方差 - 维基百科,自由的百科全书 變異數 (英語: variance)又稱 变异数[1] 、 變方[2],在 概率论 及 统计学 中,描述的是一个 随机变量 的离散程度,即一组数字与其平均值之间的距离的度量,是随机变量与其 总体 均值或样本均值的 离差 的平方的 期望值。
What Is Variance in Statistics? Definition, Formula, and Example Variance is a measurement of dispersion across a data set, comparing the difference between every other number in the set
什么是方差-CSDN博客 方差(Variance) 是 统计学 中的一个重要概念,用来度量一组数据的离散程度或分散程度。 具体来说,方差反映了数据点与其均值之间的偏离程度。