Which of the following is a statistical question?A:What is the cafeteria serving for lunch on Wednesday?B:What type of sneakers do the students in my school prefer to wear?C:What is the meaning of the stars and stripes on the American Flag?
Which statistical measure is most affected by extreme values? A. mean B. median C. mode D. range 相关知识点: 试题来源: 解析 A。A 选项 mean 平均数会受到极端值的很大影响,因为是所有数据的总和除以个数。B 选项 median 中位数相对不太受极端值影响。C 选项 mode 众数一般也不太受极端值影响。D...
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...
Which statistical method is often used to identify patterns or groups in a dataset without prior knowledge of the number or characteristics of the groups? A. Discriminant analysis B. Cluster analysis C. ANOVA D. Multiple regression 相关知识点: ...
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:...
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 ...
Which statistical analysis method can be used to test for differences among more than two groups? A. Two-sample t-test B. Paired t-test C. One-way ANOVA D. Linear regression 相关知识点: 试题来源: 解析 C。单因素方差分析(One-way ANOVA)可以用于检验三个或更多组之间的差异。两样本 t 检验...
Which statistical method is often used to determine whether there is a significant difference between two groups in an experiment? A. Correlation analysis B. T - test C. Regression analysis 相关知识点: 试题来源: 解析 B。解析:T - 检验(T - test)主要用于检验两组数据之间是否存在显著差异。相关...
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...
A. Drawing B. Writing C. Counting D. Painting 相关知识点: 试题来源: 解析 C。本题考查统计方法。选项 A“Drawing”(绘画)、选项 B“Writing”(写作)和选项 D“Painting”(绘画)都不是统计方法。而选项 C“Counting”(计数)是一种基本的统计方法。反馈 收藏 ...