查询词典 chi squared test

Events,Operation and Relation of Sets, Classical Probability, Geometrical Probability , Statistical Stability of a Frequency, Axioms of Probability, Conditional Probability, Total Probability Theorem, Bayes' Rule,Independent Events,Independent Repeated Trials, One Dimensional Random Variables, Discrete Random Variables, Distribution Function of a Random Variables , Continuous Random Variables, Normal Distribution, Distribution of a Function of a Random Variable, Multidimensional Random Variables, Joint Distribution Function, Marginal Distribution Function,Discrete Two—Dimensional Random Variables,Continuous Two—Dimensional Random Variables, Independent Random Variables, Distribution of Functions of Random Variables,Expectation,Variance, Covariance, Coefficient of Correlation, Bivariate Normal Distribution, Law of Large Numbers, The Central Limit Theorems, Sample and Population ,Chi—Squared, T and F Distributions , Sampling Distributions , Point Estimation , Interval Estimation , Testing Hypotheses , A Test of Significance for Parameters in a Single Sample From a Normally Distributed Population , A Test of Significance for Parameters in Two Sample From Normally Distributed Populations .

本课程的主要内容：概率的概念与运算、随机变量及其分布、随机变量的数字特征与极限定理、数理统计的基本概念、估计和检验的基本方法，随机事件与概率随机事件、事件的关系与运算、几何概率、统计概率等，条件概率、全概率公式、贝叶斯公式、事件的独立性、二项概率公式，随机变量的概念、离散型随机变量、随机变量的分布函数、连续型随机变量、随机变量函数的分布，多维随机变量及其分布函数、边缘分布函数、随机变量的独立性、二维随机变量函数的分布，数学期望、方差、协方差和相关系数、大数定律、中心极限定理，总体与样本， X 2-分布、 t-分布和 F-分布，统计量及抽样分布，假设检验的基本概念、单个正态总体参数的显著性检验、两个正态总体参数的显著性检验。

ANOVA test and Chi Squared test were performed to find variables that influenced the severity of primary hepatic carcinoma.

结果 在这42例行使介入手术治疗的原发性肝癌患者中，男性占85.7%，平均年龄55.5岁。42位患者有71%患有乙型肝炎。

Pearson's chi-squared test ; Vertical density representation ; Center-similar distribution ; Recurrent event data ; Estimating equation

Pearson X2检验；垂直密度表示；中心相似分布；复发事件数据；估计方程

Methods: We conducted a retrospective cohort study by reviewing medical records of patients with crotaline snakebite between 1991 and 2005. We used a structured questionnaire to abstract information on demographic variables, treatment, adverse effects of antivenom, and local/ systemic complications. T-test, chi-squared test, and multiple logistic regression were employed in data analyses.

我们回溯性地分析自1991-2005年台北荣民总医院有关毒蛇咬伤住院之个案，利用专属的问卷详细摘录这些住院病人的年龄、性别、过去病史、咬伤伤口的症状、全身性临床表徵、实验室资料、所有的治疗(包括抗蛇毒血清剂量与抗生素和其他药物)、临床预后结果、产生的并发症和住院的天数。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。