A. the spread of the data around the mean B. the total number of data points C. the highest value in the data set D. the lowest value in the data set 相关知识点: 试题来源: 解析 A。“standard deviation”是标准差的意思,衡量数据围绕均值的分散程度。B 选项是数据点的总数;C 选项是数据...
The standard deviation for a population data set would be 2.87. The sample formula is used when the data set represents a random sample from the entire population in question. The population formula is used when there is data from the entire population being studied or considered. The mean...
Standard deviation tells you if the estimate is accurate C. Standard deviation tells you how unsure the estimate is D. Standard deviation tells you if the E. stimate includes a pad 相关知识点: 试题来源: 解析 C 标准差和风险有何关系? A. 没有关系 B. 标准差告诉你估算是否准确 C. 标准差...
Standard Deviation is a statistical tool that is used widely by statisticians, economists, financial investors, mathematicians, and government officials. It allows these experts to see how variable a collection of data is. Furthermore, SD is calculated as the square root of the variance of the ...
explain what“1 standard deviation above the average score"means。能用英语回答就更好了, 相关知识点: 试题来源: 解析 "1 standard deviation above the average score" means that the observation value minus the population mean just equals to 1 standard deviation.The average score is the population ...
分数或比数中大概有多少部分是在平均值mean的标差值standarddeviation的范围内结果一 题目 关于标准偏差的问题(英文)about what proportion of the scores are within two standard deviations of the mean?这句话是什么意思呀? 答案 这是道数学问题意思是说分数或比数中大概有多少部分是在平均值(MEAN)的标差值(ST...
结果一 题目 What is the meaning of the standard deviation when it is negative是什么意思 顺便用英语做一下吧 答案 标准差为负值时是什么意思 相关推荐 1 What is the meaning of the standard deviation when it is negative是什么意思 顺便用英语做一下吧 ...
What is the standard deviation of a portfolio if you invest 30% in stock one (standard deviation of 4.6%) and 70% in stock two (standard deviation of 7.8%) if the correlation coefficient for the two stocks is 0.45? A. 0.38%. B. 6.20%. C. 6.83%. 相关知识点: 试题来源: 解析 B...
What is a standard deviation?Question:What is a standard deviation?Statistics:Numerous statistical techniques measure aspects of a population of values, such as a population of humans' intelligence scores, using tools like variables, deviation, and variance, which actually relate to each other.Answer...
Given a mean of 10% and a standard deviation of 14%, what is a 95% confidence interval for the return next year?A. -17.44% to 37.44%.B. -4.00% to 24.00%.C. -17.00% to 38.00%. 正确答案:A 分享到: 答案解析: 10% +/- 14(1.96) = -17.44% to 37.44%. 统计:共计41人答过,平...