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?D:How long has the art teacher been married to his wife?
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...
Which of the following is a non-parametric statistical test? A. t-test B. ANOVA C. Mann-Whitney U test D. Regression analysis 相关知识点: 试题来源: 解析 C。解析:Mann-Whitney U 检验是一种非参数检验,t 检验、ANOVA 和回归分析都是参数检验。
Which of the following is an important factor affecting the accuracy of statistical inference based on sampling? A. The size of the population B. The sample size C. The average of the population D. The variance of the sample 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 statistical answer may be at hand. For the first time, a new study, “It’s All About Me”, to be presented next week at the annual gathering of the American Academy of Management, offers a systematic, empirical analysis of what effect narcissistic bosses have on the firms they run. ...
is the average D. is the middle value 相关知识点: 试题来源: 解析 A。本题考查众数的概念。众数是一组数据中出现次数最多的数值。选项 B“has the highest sum”是和最大,与众数无关。选项 C“is the average”是平均数,与众数不同。选项 D“is the middle value”是中位数,不是众数。反馈 收藏 ...
结果1 题目 Which of the following statistical graphs is the best to show the relationship between two variables? A. Scatter diagram B. Stem-and-leaf diagram C. Broken-line graph D. Back-to-back stem-and-leaf diagram 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
When presenting statistical results, which of the following is the least accurate way? A. Rounding the numbers too much so that important details are lost B. Presenting the exact numbers with appropriate decimal places C. Using statistical tables to show the data clearly D. Adding footnotes to ...
A. lack of data B. poor sampling technique C. instrument inaccuracy D. human E. rror 相关知识点: 试题来源: 解析 B。本题主要考查随机误差产生的原因。选项 A“lack of data”缺乏数据不是随机误差的主要原因。选项 B“poor sampling technique”不良的抽样技术会导致随机误差,符合题意。选项 C“instrum...