查询词典 standard deviation

The average standard deviation of six determinations is 0.48%. The method was applied to the determination of omeprazole in capsules with satisfactory results.

药物浓度在20-300mg/L范围内服从比耳定律。6次测定结果的相对标准偏差为0.48%，利用本法测定了奥美拉唑胶囊中有效成分的含量，结果令人满意。

Finally, the average and standard deviation of SNOT-20 and RSI were obtained.

最后求得SNOT-20与RSI分数之平均值、标准差与中位数。

The average error, maximum error and the error standard deviation regarding the test data decrease by 37%(45%), 34%(40%) and 35%(40%), respectively.

对测试数据的平均误差、最大误差和标准差较传统ANFIS分别下降了37%(45%)， 34%(40%)和35%(40%)。

The relative standard deviation was within 6.2%. The contents of benzene series in sediments were betw een 3.79 and 17.36 μg/g.

测得海洋沉积物中的这些苯系物的质量比范围为3.79～17.36 μg/g。

Estimating two parameters of Beta distribution from nonlinear equation made of mean, standard deviation, skewness and kurtosis function.

本文研究测量分布的方法新颖、实用，适用性强，对研究其他测量及工程设计问题均有可以借鉴的意义。

NMath Stats contains a data table class with functions for computing descriptive statistics, such as mean, variance, standard deviation, percentile, median, quartiles, geometric mean, harmonic mean, RMS, kurtosis, skewness, and many more; PDF, CDF, inverse CDF, and random variable moments for a variety of probability distributions, including normal, Poisson, chi-square, gamma, beta, Student's t, F, binomial, and negative binomial; Combinatorial functions, such as factorial, log factorial, binomial coefficient, and log binomial; Multiple linear regression; Basic hypothesis tests, such as z-test, t-test, and F-test, with calculation of p-values, critical values, and confidence intervals; One-way and two-way analysis of variance and analysis of variance with repeated measures; Multivariate statistical analyses, including principal component analysis and hierarchical cluster analysis.

nmath统计包含一个数据表的阶层与职能计算描述性统计，如平均，方差，标准差，百分位，中位数， 25 ％，几何平均数，调和的意思是，有效值，峭度，偏度，还有更多的； PDF格式，民防部队，逆民防部队，并随机变量矩的各种概率分布，包括正常，泊松，卡方检定，伽玛，测试版，学生的吨，男，二项式，并负二项分布；组合的功能，例如阶乘，日志阶乘，二项式系数，并登入二项式；多元线性回归；基本假设测试，如的Z测试， t检验， F检验，计算p值，临界值，和置信区间；之一，双向和双方法方差分析和方差分析与反复的措施；多元统计分析，包括主成分分析和聚类分析。

For polychlorinated biphenyl, QSRR model was built by principal component regression. A regression model with correlation coefficient of 0.9999 and standard deviation of 2.4636 was obtained.

分别对同一结构特征的分子体系和不同结构特征的分子体系进行了程序升温保留指数与其结构之间的关系研究，并建立相应预测模型。

［Objective］To identify the standard of radiographic diagnosis and analyse the measurement between tailor's bunion and normal feet.［Methods］The fourth-fifth intermetatarsal angle (IM4～5),modified fourth-fifth intermetatarsal angle (MIM4～5),metatarsophalangeal-fifth angle,lateral deviation of the fifth metatarsal angle,width of fifth metatarsal head,distance of prominence of the fifth metatarsal head were measured by X-ray for 131 feet of normal persons and 117 feet of tailor's bunion. The measured results and other clinical presentations were compared.

［目的］通过对小趾囊炎足与正常足X线的测量及对比分析研究，明确小趾囊炎足X线诊断标准［方法］对131例正常足与117例小趾囊炎足的第4～5跖骨间角(IM4～5)，改良4～5跖骨间角(MIM4～5)，小趾内翻角，第5跖骨外翻角，第5跖骨头宽度及突出距离进行X线测量，结合临床对测量结果进行对比分析研究。

By processing the standard deviation of test parameters,designing the resistance of the battery circuit,calculating the preliminary charging flow and further experiments revealed the correlation between the test res.

通过对测试参数均方差处理，蓄电池内阻测试电路设计以及初充电流估算和进一步实验，揭示了各测试结果与故障之间的关联度，验证了分析结论与实验结果的一致性。

The means and their standard deviation of carboxyhemoglobin contents in the blood from finger and ear were calculated in 5 groups divided according to the earboxyhemoglobin contents in finger blood.

结果与分祈根据62名受检者指血与耳血中COHb%的测定值绘制成散点图，散点从左下方向右_L方分布，表明指血与耳血中CoHb%测值之间存在着正相关，其回归方程为Y=0 。0418+0.9542xr=0.9675

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。