Which statistical analysis method is used to test the independence of two categorical variables? A. Chi-square test of independence B. T-test C. Analysis of variance D. Linear regression 相关知识点: 试题来源: 解析 A。独立性卡方检验(Chi-square test of independence)用于检验两个分类变量的独立...
A. Cross-sectional analysis B. Time series analysis C. Chi-square test D. T-test 相关知识点: 试题来源: 解析 B。时间序列分析(Time series analysis)适用于分析时间序列数据。交叉截面分析用于分析不同个体在同一时间点的数据,卡方检验用于分析分类数据,T 检验用于比较两个独立组。反馈 收藏 ...
When the data is not normally distributed, which statistical analysis method is more appropriate? A. Parametric methods B. Non-parametric methods C. Linear regression D. T-test 相关知识点: 试题来源: 解析 B。当数据不服从正态分布时,非参数方法更合适。参数方法通常要求数据服从正态分布,线性回归和...
Which statistical test is used to compare the means of two independent groups? A. t-test B. ANOVA C. Correlation analysis D. Regression analysis 相关知识点: 试题来源: 解析 A。解析:t 检验用于比较两个独立组的均值,ANOVA 用于比较多个组的均值,相关分析用于研究变量之间的关系,回归分析用于建立变量...
This is the reference book of which the teacher is speaking.这就是老师正在谈及的那本参考书。 注意: 如果介词不放在修饰事物的限定性定语从句的句首, which就可换为that, 例如: This is the question which/that we've had so much discussion about.=This is the question about which we've had so...
A:Statistical studies of this kind have not yet been carried out, and even if they were, the results would be sure to be complicated.B:It is likely for China to beat the United States in the application of AI, as local companies scramble to experiment with new ideas.C:...
When analyzing data, we often use statistical methods. Which of the following is a statistical measure? A. Drawing diagrams B. Counting objects C. Finding the median D. Making models 相关知识点: 试题来源: 解析 C。本题考查统计方法。选项 A“Drawing diagrams”(绘制图表)、选项 B“Counting ...
Which method is suitable for analyzing qualitative data? A. Statistical analysis B. Content analysis C. Mathematical modeling D. Experimental design 相关知识点: 试题来源: 解析 B。内容分析方法适合分析定性数据,统计分析通常用于定量数据,数学建模和实验设计也主要针对定量数据。
When comparing the performance of three different teaching methods, which statistical test is appropriate? A. One-way ANOVA B. Two-way ANOVA C. Chi-square test D. Regression analysis 相关知识点: 试题来源: 解析 A。单因素方差分析用于比较三个及以上组之间的差异,本题是比较三种不同的教学方法的...
To analyze the variability within a single group of data, which statistical measure is appropriate? A. Standard deviation B. Variance C. Range D. Interquartile range 相关知识点: 试题来源: 解析 A。标准差用于衡量一组数据的离散程度,适合分析单个组内数据的变异性。方差是标准差的平方,也可以衡量...