样本平均值

词组短语

sample mean

与样本平均值相关的网络例句 [注：此内容来源于网络，仅供参考]

From statistics, the theorem that the distribution of sample means taken from a large population approaches a normal, Gaussian, curve.

根据此定理，统计抽样的样本量越大，则随机选择的样本平均值越接近于正态分布。

You also get your sample mean, the standard deviation ( this is the estimated standard deviation ), and the estimated standard error of the mean.

你也能获得你的样本平均值，标准偏差，和平均值的估计误差。

For example, 13% of customers in the validation sample are identified as high-potential customers because their estimated total wallet is in the top quintile but their estimated share of wallet at the focal firm is below average.

例如，有效样本中13%的顾客是高潜力的顾客，因为他们的总钱包尺寸很高而他们在特定公司的钱包份额是低于平均值的。

For the sample as a whole, mean and median values calculated from public companies are significantly lower than private company means and medians.

从样本整体来看，上市公司中计算出的平均值和中间值显著低于私营企业的平均值和中间值。

In average … there is no mention of sample size.

结论是根据平均值得来的，但是不告诉我们采集数据的样本范围有多大。

Acquired conclusion was that the sample mean value submitted to normal distribution, and the sample variance was composed of a number of linear sum of random variable submitted to Chi-Squared distr.

得出的结论是：样本均值服从正态分布，样本方差由若干个服从卡方分布的随机变量的线性之和组成；样本均值的期望等于各管落点期望的算术平均值，方差为各管方差的算术平均值；样本方差是各管落点总体平均方差的无偏估计，方差与各管落点散布的差异相关；样本均值与方差相互独立的充要条件是：各管落点属于独立同分布样本。

All data are represented as the mean of triplicate samples.

所有数据代表着三份样本的平均值。

Effects of the invasive plant Spartina alterniflora on insect diversity in Jiuduansha wetlands in the Yangtze River Estuary

性质：一组样本测定值的平均值。分为简单平均值即算术平均值和加权算术平均值。

A new trick using Trichogramma brassicae asvectors to transmit Dendrolimus punctatus cypovirus was developed (called"Biological missiles Dp-Ⅰ") to control the Dendrolimus punctatus in the field. Sincethen, we collect the single caterpillar from both areas used Dp-Ⅰand controlled areasevery year, and A nested-PCR-based assay for the detection of those samples wasdeveloped, The results showed that the positive reaction rate of the first year is 40～70％; and second year is 30～80％, on the other hand, the positive reaction rate of thecontrolled areas are 10～40％and 10～20％.

第二章对马尾松毛虫质型多角体病毒的流行病做了初步的调查，应用巢式RT-PCR方法检测从野外释放&生物导弹Dp-Ⅰ&的林区采集马尾松毛虫单虫样本，结果发现：2006年释放&生物导弹Dp-Ⅰ&的王福店林区的松毛虫体内DpCPV阳性率为40～70％，平均阳性率为58％，相应对照区的阳性率为10～40％，平均阳性率为24％；2005年释放&生物导弹Dp-Ⅰ&的丁家畈林区松毛虫体内DpCPV阳性率为30～80％，平均值也为58％，相应对照区的阳性率为10～20％，平均值为16％。

K-means, and self-organizing map and the feature selection methods based on coefficient of variation and simple T-test were integrated. To evaluate the performance of the Samcluster system, the Samcluster was applied to four expression datasets COLON, LEUKEMIA72. LEUKEMIA38, and OVARIAN. The results show that there are only 5, 1,0, and 0 samples misclassified, respectively. We conclude that the proposed scheme. SamCluster. is an efficient method for automatic discovery of sample classes using gene expression profile.

在Samcluster系统中，整合了下列聚类算法：谱系聚类、K-平均值聚类和自组图聚类与变异系数计算和T-检验等基因变量选择方法，并提出了一致的样本分型概念，通过对四个基因表达谱的数据集COLON、LEUKEMIA72、LEUKEMIA38和OVARIAN的测试，结果表明：误判的样本数分别为5、1、0和0个，因此，基因水平的样本分型与样本的临床分型高度一致。

与样本平均值相关的网络解释 [注：此内容来源于网络，仅供参考]

sample autocorrelation function：样本自相关函数

"抽样保持装置,取样保持装置,取样保值装器","sample and hold device" | "样本自相关函数","sample autocorrelation function" | "样本平均值(数)","sample average"

average sample number curve：平均抽样数量曲线,平均样本数曲线

average sample number 平均取样数,平均抽查数,平均检查量,平均取样量,平均值抽样数 | average sample number curve 平均抽样数量曲线,平均样本数曲线 | average sample number function 平均样本数函数

sample central moment：样本中央矩

"样本平均值(数)","sample average" | "样本中央矩","sample central moment" | "样本变化紧密","sample change compaction"

estimation：估计

最终是要根据样本测定值知道样本所在的生产过程或当日生产批(总体)的质量特性平均值及离散状态.判断总体的质量特性是否处于受控状态、是否满足规范要求等等. 进行这种客观判断的手段,就是统计检验(test)与估计(estimation).

estimator：估計式

从样本中计算得来,用来估算一未知母数的统计量称为估计量值(estimates),用来计算估计值的计算公式称为估计式(estimator)平均值容易受到极端值(outlier)的影响,若资料中有过大或过小的观察值时,不要以平均值来代表集中趋势.

empirical sample mean：经验样本平均值,经验样本平均值

empirical regularity 经验规律性,经验规律性 | empirical sample mean 经验样本平均值,经验样本平均值 | empirical school 经验学派,经验学派

sample median：样本中值

sample mean 样本平均值 | sample median 样本中值 | sample segment 样本段

sample mean and variance：样本平均值与方差

sample 试样 | sample mean and variance 样本平均值与方差 | sample size 样品大小

Sampling distribution of sample mean：样本平均值的抽样分布

sampling distribution 采样分布,取样分布,抽样分布,标本分布 | sampling distribution of sample mean 样本平均值的抽样分布 | sampling distribution of the statistic 统计量的抽样分布

sampleman：采样工

sampleforreference检查样品 | sampleman采样工 | samplemeanandvariance样本平均值与方差