random sample的例句大全

methods a random sample of 900 medical students was surveyed in hefei.

方法随机抽样调查了900名合肥市的医科在校大学生。

the difference between the random sample index and the model parameters was not statistically significant.

样本指标与模型参数之间的差异无统计学意义。

methods the random sample and questionnaire were used in 72 counties of henan.

方法对河南农村72个县用随机抽样和问卷调查的方法进行分析。

line detection algorithm based on random sample theory make the plane measurement more precise and quicker.

基于随机采样理论的直线检测算法使得平面测量更为精确、快速。

that's because the fewer participants are in a random sample,

因为随机选取样本的人数越少，

an inquiry into public opinion conducted by interviewing a random sample of people.

随机抽样接见民众以探测民意。

a random sample, selection, etc

随意抽取的样品、任意选择的东西

the limit theorem of maximum with random sample size under quasi-regular varying condition

拟正则条件下具有随机足标的最大值的极限定理

measuring and controlling system of corrupt fatigue experiments powered by oil-pressure based on random sample methods

基于随机采样法的液压腐蚀疲劳试验测控系统

twenty five brains of the adult chinese buffalo were investigated and a random sample of ten was used for various measurements.

共观察了25头成年水牛脑，并随机取脑样10个，进行了各种测量，所得数据的平均值如下：脑长15.70厘米；

Small sample properties are derived for the estimator from simple random samples.

我们推导简单随机抽样下该估计值的小样本性质.

The Stratified Random Sampling Method and Small Sample Testing

分层随机抽样方法与小子样检验

Sample Percentage Presentation of Joint Probability Density of Two Random Variables.

二维随机变数联合机率之取样百分比密度.

Survey sample selection, multi-stage random sampling method, questionnaire and structured interview method of combining survey research.

调查样本的选取采用多阶段随机抽样的方法，通过问卷调查与结构式访谈相结合的方法对调查对象进行研究。

Methods Simple size calculation of cluster-randomized trial was used to determine the sample size of the two groups and a vaccination campaign was conducted. The study group was given typhoid Vi vaccine and the control group was given meningococcal A vaccine.

方法采用组群随机试验方法确定试验组和对照组所需样本量，并组织实施大规模疫苗接种，在试验组接种伤寒Vi疫苗、对照组接种流脑疫苗。

the testing sample, involving 300 sentences each of which contains at least one chinese names, is extracted at random from the xinhua news corpus.

我们从新华通讯社新闻语料库中随机抽取了300个包含中文姓名的句子作为测试样本。

Random Process theory has proved that when the degree of confidence is fixed, confidence interval length of mathematic expectation is inversely proportional to the square roots of sample points.

随机过程理论证明：在置信度一定的情况下，数学期望的置信区间长度与样点数呈平方根反比关系。

Disturbed by random selection within a certain number of particles in the sample, calculate the sample mean and variance of the target space, which is proposed for the maximization and minimization problems of the robust model ofa single target, and extended to multiple targets. 4.

通过随机选取粒子扰动范围内一定数量的样本，计算出样本目标空间的均值和方差，由此提出了针对最大化和最小化问题的鲁棒模型，并推广到多个目标的优化命题。

the pew survey was conducted by telephone from mid-february through mid-march among a random, nationwide sample of 2,020 adults.

此项随机电话调查从今年2月中旬持续至三月中旬，全美共有2020名成年人参加。

After that, random sampling method of flow through pipes and pressure heads at nodes by Monte Carlo method is proposed, and to test the distribution of sample, SPSS software and skewness-kurtosis method are used.

利用蒙特卡洛方法对各管段流量和各节点压力进行随机抽样，并使用SPSS软件和偏度、峰度方法对其进行正态性检验。